Home / 80,426.03-120,560.58-38,294.78

Finding the Fourth Proportional to 80,426.03, 120,560.58 and 38,294.78

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Solution

The fourth proportional to 80,426.03, 120,560.58 and 38,294.78 is: 57,404.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,426.03 : 120,560.58 = 38,294.78 : x
  2. Step 2: Convert to fraction form
    80,426.03/120,560.58 = 38,294.78/x
  3. Step 3: Cross multiply
    80,426.03x = 120,560.58 × 38,294.78
  4. Step 4: Simplify right side
    80,426.03x = 4,616,841,189.17
  5. Step 5: Solve for x
    x = 4,616,841,189.17/80,426.03
  6. Step 6: Final answer
    x = 57,404.82

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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.