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Finding the Fourth Proportional to 40,324.80, 60,505.20 and 14,048.40

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Solution

The fourth proportional to 40,324.80, 60,505.20 and 14,048.40 is: 21,078.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,324.80 : 60,505.20 = 14,048.40 : x
  2. Step 2: Convert to fraction form
    40,324.80/60,505.20 = 14,048.40/x
  3. Step 3: Cross multiply
    40,324.80x = 60,505.20 × 14,048.40
  4. Step 4: Simplify right side
    40,324.80x = 850,001,251.68
  5. Step 5: Solve for x
    x = 850,001,251.68/40,324.80
  6. Step 6: Final answer
    x = 21,078.87

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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.