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Finding the Fourth Proportional to 40,323.40, 60,485.10 and 29,177.80

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Solution

The fourth proportional to 40,323.40, 60,485.10 and 29,177.80 is: 43,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,323.40 : 60,485.10 = 29,177.80 : x
  2. Step 2: Convert to fraction form
    40,323.40/60,485.10 = 29,177.80/x
  3. Step 3: Cross multiply
    40,323.40x = 60,485.10 × 29,177.80
  4. Step 4: Simplify right side
    40,323.40x = 1,764,822,150.78
  5. Step 5: Solve for x
    x = 1,764,822,150.78/40,323.40
  6. Step 6: Final answer
    x = 43,766.70

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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.