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Finding the Fourth Proportional to 45,114.80, 67,480.20 and 40,468.40

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Solution

The fourth proportional to 45,114.80, 67,480.20 and 40,468.40 is: 60,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,114.80 : 67,480.20 = 40,468.40 : x
  2. Step 2: Convert to fraction form
    45,114.80/67,480.20 = 40,468.40/x
  3. Step 3: Cross multiply
    45,114.80x = 67,480.20 × 40,468.40
  4. Step 4: Simplify right side
    45,114.80x = 2,730,815,725.68
  5. Step 5: Solve for x
    x = 2,730,815,725.68/45,114.80
  6. Step 6: Final answer
    x = 60,530.37

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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.