Home / 57,084.60-78,773.94-31,590.50

Finding the Fourth Proportional to 57,084.60, 78,773.94 and 31,590.50

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Solution

The fourth proportional to 57,084.60, 78,773.94 and 31,590.50 is: 43,593.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084.60 : 78,773.94 = 31,590.50 : x
  2. Step 2: Convert to fraction form
    57,084.60/78,773.94 = 31,590.50/x
  3. Step 3: Cross multiply
    57,084.60x = 78,773.94 × 31,590.50
  4. Step 4: Simplify right side
    57,084.60x = 2,488,508,151.57
  5. Step 5: Solve for x
    x = 2,488,508,151.57/57,084.60
  6. Step 6: Final answer
    x = 43,593.34

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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.