Home / 83,937.20-125,862.60-31,319.60

Finding the Fourth Proportional to 83,937.20, 125,862.60 and 31,319.60

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Solution

The fourth proportional to 83,937.20, 125,862.60 and 31,319.60 is: 46,963.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,937.20 : 125,862.60 = 31,319.60 : x
  2. Step 2: Convert to fraction form
    83,937.20/125,862.60 = 31,319.60/x
  3. Step 3: Cross multiply
    83,937.20x = 125,862.60 × 31,319.60
  4. Step 4: Simplify right side
    83,937.20x = 3,941,966,286.96
  5. Step 5: Solve for x
    x = 3,941,966,286.96/83,937.20
  6. Step 6: Final answer
    x = 46,963.28

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1.5x scale

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.