Home / 81,156.27-121,747.48-24,996.36

Finding the Fourth Proportional to 81,156.27, 121,747.48 and 24,996.36

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Solution

The fourth proportional to 81,156.27, 121,747.48 and 24,996.36 is: 37,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,156.27 : 121,747.48 = 24,996.36 : x
  2. Step 2: Convert to fraction form
    81,156.27/121,747.48 = 24,996.36/x
  3. Step 3: Cross multiply
    81,156.27x = 121,747.48 × 24,996.36
  4. Step 4: Simplify right side
    81,156.27x = 3,043,243,839.17
  5. Step 5: Solve for x
    x = 3,043,243,839.17/81,156.27
  6. Step 6: Final answer
    x = 37,498.57

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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.