Home / 91,472.28-126,191.68-53,729.52

Finding the Fourth Proportional to 91,472.28, 126,191.68 and 53,729.52

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Solution

The fourth proportional to 91,472.28, 126,191.68 and 53,729.52 is: 74,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,472.28 : 126,191.68 = 53,729.52 : x
  2. Step 2: Convert to fraction form
    91,472.28/126,191.68 = 53,729.52/x
  3. Step 3: Cross multiply
    91,472.28x = 126,191.68 × 53,729.52
  4. Step 4: Simplify right side
    91,472.28x = 6,780,218,394.39
  5. Step 5: Solve for x
    x = 6,780,218,394.39/91,472.28
  6. Step 6: Final answer
    x = 74,123.20

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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.