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Finding the Fourth Proportional to 72,452.80, 108,679.20 and 44,766.40

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Solution

The fourth proportional to 72,452.80, 108,679.20 and 44,766.40 is: 67,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,452.80 : 108,679.20 = 44,766.40 : x
  2. Step 2: Convert to fraction form
    72,452.80/108,679.20 = 44,766.40/x
  3. Step 3: Cross multiply
    72,452.80x = 108,679.20 × 44,766.40
  4. Step 4: Simplify right side
    72,452.80x = 4,865,176,538.88
  5. Step 5: Solve for x
    x = 4,865,176,538.88/72,452.80
  6. Step 6: Final answer
    x = 67,149.60

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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.