Home / 72,125.19-99,432.68-62,159.76

Finding the Fourth Proportional to 72,125.19, 99,432.68 and 62,159.76

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Solution

The fourth proportional to 72,125.19, 99,432.68 and 62,159.76 is: 85,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.19 : 99,432.68 = 62,159.76 : x
  2. Step 2: Convert to fraction form
    72,125.19/99,432.68 = 62,159.76/x
  3. Step 3: Cross multiply
    72,125.19x = 99,432.68 × 62,159.76
  4. Step 4: Simplify right side
    72,125.19x = 6,180,711,214.16
  5. Step 5: Solve for x
    x = 6,180,711,214.16/72,125.19
  6. Step 6: Final answer
    x = 85,694.21

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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.