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Finding the Fourth Proportional to 83,042.60, 124,563.90 and 40,930.70

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Solution

The fourth proportional to 83,042.60, 124,563.90 and 40,930.70 is: 61,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,042.60 : 124,563.90 = 40,930.70 : x
  2. Step 2: Convert to fraction form
    83,042.60/124,563.90 = 40,930.70/x
  3. Step 3: Cross multiply
    83,042.60x = 124,563.90 × 40,930.70
  4. Step 4: Simplify right side
    83,042.60x = 5,098,487,621.73
  5. Step 5: Solve for x
    x = 5,098,487,621.73/83,042.60
  6. Step 6: Final answer
    x = 61,396.05

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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.