Home / 87,264.64-120,412.08-49,016.88

Finding the Fourth Proportional to 87,264.64, 120,412.08 and 49,016.88

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Solution

The fourth proportional to 87,264.64, 120,412.08 and 49,016.88 is: 67,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,264.64 : 120,412.08 = 49,016.88 : x
  2. Step 2: Convert to fraction form
    87,264.64/120,412.08 = 49,016.88/x
  3. Step 3: Cross multiply
    87,264.64x = 120,412.08 × 49,016.88
  4. Step 4: Simplify right side
    87,264.64x = 5,902,224,475.91
  5. Step 5: Solve for x
    x = 5,902,224,475.91/87,264.64
  6. Step 6: Final answer
    x = 67,635.92

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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.