Home / 87,741.46-121,082.74-47,454.90

Finding the Fourth Proportional to 87,741.46, 121,082.74 and 47,454.90

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Solution

The fourth proportional to 87,741.46, 121,082.74 and 47,454.90 is: 65,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,741.46 : 121,082.74 = 47,454.90 : x
  2. Step 2: Convert to fraction form
    87,741.46/121,082.74 = 47,454.90/x
  3. Step 3: Cross multiply
    87,741.46x = 121,082.74 × 47,454.90
  4. Step 4: Simplify right side
    87,741.46x = 5,745,969,318.43
  5. Step 5: Solve for x
    x = 5,745,969,318.43/87,741.46
  6. Step 6: Final answer
    x = 65,487.51

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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.