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Finding the Fourth Proportional to 40,139.60, 60,209.40 and 32,752.40

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Solution

The fourth proportional to 40,139.60, 60,209.40 and 32,752.40 is: 49,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.60 : 60,209.40 = 32,752.40 : x
  2. Step 2: Convert to fraction form
    40,139.60/60,209.40 = 32,752.40/x
  3. Step 3: Cross multiply
    40,139.60x = 60,209.40 × 32,752.40
  4. Step 4: Simplify right side
    40,139.60x = 1,972,002,352.56
  5. Step 5: Solve for x
    x = 1,972,002,352.56/40,139.60
  6. Step 6: Final answer
    x = 49,128.60

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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.