Home / 64,972.73-89,663.12-38,115.70

Finding the Fourth Proportional to 64,972.73, 89,663.12 and 38,115.70

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Solution

The fourth proportional to 64,972.73, 89,663.12 and 38,115.70 is: 52,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.73 : 89,663.12 = 38,115.70 : x
  2. Step 2: Convert to fraction form
    64,972.73/89,663.12 = 38,115.70/x
  3. Step 3: Cross multiply
    64,972.73x = 89,663.12 × 38,115.70
  4. Step 4: Simplify right side
    64,972.73x = 3,417,572,311.18
  5. Step 5: Solve for x
    x = 3,417,572,311.18/64,972.73
  6. Step 6: Final answer
    x = 52,600.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.