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Finding the Fourth Proportional to 67,147.73, 100,473.13 and 40,509.16

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Solution

The fourth proportional to 67,147.73, 100,473.13 and 40,509.16 is: 60,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,147.73 : 100,473.13 = 40,509.16 : x
  2. Step 2: Convert to fraction form
    67,147.73/100,473.13 = 40,509.16/x
  3. Step 3: Cross multiply
    67,147.73x = 100,473.13 × 40,509.16
  4. Step 4: Simplify right side
    67,147.73x = 4,070,082,577.42
  5. Step 5: Solve for x
    x = 4,070,082,577.42/67,147.73
  6. Step 6: Final answer
    x = 60,613.85

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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.