Home / 56,405.92-77,839.92-31,255.36

Finding the Fourth Proportional to 56,405.92, 77,839.92 and 31,255.36

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Solution

The fourth proportional to 56,405.92, 77,839.92 and 31,255.36 is: 43,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,405.92 : 77,839.92 = 31,255.36 : x
  2. Step 2: Convert to fraction form
    56,405.92/77,839.92 = 31,255.36/x
  3. Step 3: Cross multiply
    56,405.92x = 77,839.92 × 31,255.36
  4. Step 4: Simplify right side
    56,405.92x = 2,432,914,721.97
  5. Step 5: Solve for x
    x = 2,432,914,721.97/56,405.92
  6. Step 6: Final answer
    x = 43,132.26

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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.