Home / 72,087.12-108,169.47-29,996.24

Finding the Fourth Proportional to 72,087.12, 108,169.47 and 29,996.24

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Solution

The fourth proportional to 72,087.12, 108,169.47 and 29,996.24 is: 45,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,087.12 : 108,169.47 = 29,996.24 : x
  2. Step 2: Convert to fraction form
    72,087.12/108,169.47 = 29,996.24/x
  3. Step 3: Cross multiply
    72,087.12x = 108,169.47 × 29,996.24
  4. Step 4: Simplify right side
    72,087.12x = 3,244,676,841.95
  5. Step 5: Solve for x
    x = 3,244,676,841.95/72,087.12
  6. Step 6: Final answer
    x = 45,010.49

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Half scale
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Double scale
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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.