Home / 55,617.78-76,753.76-31,743.96

Finding the Fourth Proportional to 55,617.78, 76,753.76 and 31,743.96

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Solution

The fourth proportional to 55,617.78, 76,753.76 and 31,743.96 is: 43,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,617.78 : 76,753.76 = 31,743.96 : x
  2. Step 2: Convert to fraction form
    55,617.78/76,753.76 = 31,743.96/x
  3. Step 3: Cross multiply
    55,617.78x = 76,753.76 × 31,743.96
  4. Step 4: Simplify right side
    55,617.78x = 2,436,468,287.29
  5. Step 5: Solve for x
    x = 2,436,468,287.29/55,617.78
  6. Step 6: Final answer
    x = 43,807.36

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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.