Home / 70,591.72-97,418.15-38,760.75

Finding the Fourth Proportional to 70,591.72, 97,418.15 and 38,760.75

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Solution

The fourth proportional to 70,591.72, 97,418.15 and 38,760.75 is: 53,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,591.72 : 97,418.15 = 38,760.75 : x
  2. Step 2: Convert to fraction form
    70,591.72/97,418.15 = 38,760.75/x
  3. Step 3: Cross multiply
    70,591.72x = 97,418.15 × 38,760.75
  4. Step 4: Simplify right side
    70,591.72x = 3,776,000,557.61
  5. Step 5: Solve for x
    x = 3,776,000,557.61/70,591.72
  6. Step 6: Final answer
    x = 53,490.70

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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.