Home / 56,380.25-77,807.31-31,229.75

Finding the Fourth Proportional to 56,380.25, 77,807.31 and 31,229.75

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Solution

The fourth proportional to 56,380.25, 77,807.31 and 31,229.75 is: 43,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,380.25 : 77,807.31 = 31,229.75 : x
  2. Step 2: Convert to fraction form
    56,380.25/77,807.31 = 31,229.75/x
  3. Step 3: Cross multiply
    56,380.25x = 77,807.31 × 31,229.75
  4. Step 4: Simplify right side
    56,380.25x = 2,429,902,839.47
  5. Step 5: Solve for x
    x = 2,429,902,839.47/56,380.25
  6. Step 6: Final answer
    x = 43,098.48

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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.