Home / 56,372.40-77,793.86-31,221.88

Finding the Fourth Proportional to 56,372.40, 77,793.86 and 31,221.88

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Solution

The fourth proportional to 56,372.40, 77,793.86 and 31,221.88 is: 43,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,372.40 : 77,793.86 = 31,221.88 : x
  2. Step 2: Convert to fraction form
    56,372.40/77,793.86 = 31,221.88/x
  3. Step 3: Cross multiply
    56,372.40x = 77,793.86 × 31,221.88
  4. Step 4: Simplify right side
    56,372.40x = 2,428,870,561.66
  5. Step 5: Solve for x
    x = 2,428,870,561.66/56,372.40
  6. Step 6: Final answer
    x = 43,086.17

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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.