Home / 87,740.91-121,082.10-47,454.72

Finding the Fourth Proportional to 87,740.91, 121,082.10 and 47,454.72

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Solution

The fourth proportional to 87,740.91, 121,082.10 and 47,454.72 is: 65,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.91 : 121,082.10 = 47,454.72 : x
  2. Step 2: Convert to fraction form
    87,740.91/121,082.10 = 47,454.72/x
  3. Step 3: Cross multiply
    87,740.91x = 121,082.10 × 47,454.72
  4. Step 4: Simplify right side
    87,740.91x = 5,745,917,152.51
  5. Step 5: Solve for x
    x = 5,745,917,152.51/87,740.91
  6. Step 6: Final answer
    x = 65,487.32

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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.