Home / 57,702.20-86,577.60-31,425.80

Finding the Fourth Proportional to 57,702.20, 86,577.60 and 31,425.80

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Solution

The fourth proportional to 57,702.20, 86,577.60 and 31,425.80 is: 47,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,702.20 : 86,577.60 = 31,425.80 : x
  2. Step 2: Convert to fraction form
    57,702.20/86,577.60 = 31,425.80/x
  3. Step 3: Cross multiply
    57,702.20x = 86,577.60 × 31,425.80
  4. Step 4: Simplify right side
    57,702.20x = 2,720,770,342.08
  5. Step 5: Solve for x
    x = 2,720,770,342.08/57,702.20
  6. Step 6: Final answer
    x = 47,151.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.