Home / 72,613.14-100,207.43-40,350.74

Finding the Fourth Proportional to 72,613.14, 100,207.43 and 40,350.74

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Solution

The fourth proportional to 72,613.14, 100,207.43 and 40,350.74 is: 55,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,613.14 : 100,207.43 = 40,350.74 : x
  2. Step 2: Convert to fraction form
    72,613.14/100,207.43 = 40,350.74/x
  3. Step 3: Cross multiply
    72,613.14x = 100,207.43 × 40,350.74
  4. Step 4: Simplify right side
    72,613.14x = 4,043,443,251.21
  5. Step 5: Solve for x
    x = 4,043,443,251.21/72,613.14
  6. Step 6: Final answer
    x = 55,684.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.