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Finding the Fourth Proportional to 72,793.64, 100,452.60 and 40,527.28

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Solution

The fourth proportional to 72,793.64, 100,452.60 and 40,527.28 is: 55,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,793.64 : 100,452.60 = 40,527.28 : x
  2. Step 2: Convert to fraction form
    72,793.64/100,452.60 = 40,527.28/x
  3. Step 3: Cross multiply
    72,793.64x = 100,452.60 × 40,527.28
  4. Step 4: Simplify right side
    72,793.64x = 4,071,070,646.93
  5. Step 5: Solve for x
    x = 4,071,070,646.93/72,793.64
  6. Step 6: Final answer
    x = 55,926.19

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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.