Home / 84,326.76-126,490.14-21,996.72

Finding the Fourth Proportional to 84,326.76, 126,490.14 and 21,996.72

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Solution

The fourth proportional to 84,326.76, 126,490.14 and 21,996.72 is: 32,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,326.76 : 126,490.14 = 21,996.72 : x
  2. Step 2: Convert to fraction form
    84,326.76/126,490.14 = 21,996.72/x
  3. Step 3: Cross multiply
    84,326.76x = 126,490.14 × 21,996.72
  4. Step 4: Simplify right side
    84,326.76x = 2,782,368,192.34
  5. Step 5: Solve for x
    x = 2,782,368,192.34/84,326.76
  6. Step 6: Final answer
    x = 32,995.08

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.