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Finding the Fourth Proportional to 83,133.10, 124,614.60 and 40,948.30

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Solution

The fourth proportional to 83,133.10, 124,614.60 and 40,948.30 is: 61,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133.10 : 124,614.60 = 40,948.30 : x
  2. Step 2: Convert to fraction form
    83,133.10/124,614.60 = 40,948.30/x
  3. Step 3: Cross multiply
    83,133.10x = 124,614.60 × 40,948.30
  4. Step 4: Simplify right side
    83,133.10x = 5,102,756,025.18
  5. Step 5: Solve for x
    x = 5,102,756,025.18/83,133.10
  6. Step 6: Final answer
    x = 61,380.56

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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.