Home / 85,151.20-127,727.04-29,747.20

Finding the Fourth Proportional to 85,151.20, 127,727.04 and 29,747.20

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Solution

The fourth proportional to 85,151.20, 127,727.04 and 29,747.20 is: 44,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,151.20 : 127,727.04 = 29,747.20 : x
  2. Step 2: Convert to fraction form
    85,151.20/127,727.04 = 29,747.20/x
  3. Step 3: Cross multiply
    85,151.20x = 127,727.04 × 29,747.20
  4. Step 4: Simplify right side
    85,151.20x = 3,799,521,804.29
  5. Step 5: Solve for x
    x = 3,799,521,804.29/85,151.20
  6. Step 6: Final answer
    x = 44,620.88

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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.