Home / 71,434.06-98,581.34-39,605.92

Finding the Fourth Proportional to 71,434.06, 98,581.34 and 39,605.92

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Solution

The fourth proportional to 71,434.06, 98,581.34 and 39,605.92 is: 54,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,434.06 : 98,581.34 = 39,605.92 : x
  2. Step 2: Convert to fraction form
    71,434.06/98,581.34 = 39,605.92/x
  3. Step 3: Cross multiply
    71,434.06x = 98,581.34 × 39,605.92
  4. Step 4: Simplify right side
    71,434.06x = 3,904,404,665.53
  5. Step 5: Solve for x
    x = 3,904,404,665.53/71,434.06
  6. Step 6: Final answer
    x = 54,657.47

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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.