Home / 56,456.93-77,910.57-31,306.43

Finding the Fourth Proportional to 56,456.93, 77,910.57 and 31,306.43

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Solution

The fourth proportional to 56,456.93, 77,910.57 and 31,306.43 is: 43,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.93 : 77,910.57 = 31,306.43 : x
  2. Step 2: Convert to fraction form
    56,456.93/77,910.57 = 31,306.43/x
  3. Step 3: Cross multiply
    56,456.93x = 77,910.57 × 31,306.43
  4. Step 4: Simplify right side
    56,456.93x = 2,439,101,922.48
  5. Step 5: Solve for x
    x = 2,439,101,922.48/56,456.93
  6. Step 6: Final answer
    x = 43,202.88

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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.