Home / 87,159.46-120,264.06-58,520.70

Finding the Fourth Proportional to 87,159.46, 120,264.06 and 58,520.70

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Solution

The fourth proportional to 87,159.46, 120,264.06 and 58,520.70 is: 80,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.46 : 120,264.06 = 58,520.70 : x
  2. Step 2: Convert to fraction form
    87,159.46/120,264.06 = 58,520.70/x
  3. Step 3: Cross multiply
    87,159.46x = 120,264.06 × 58,520.70
  4. Step 4: Simplify right side
    87,159.46x = 7,037,936,976.04
  5. Step 5: Solve for x
    x = 7,037,936,976.04/87,159.46
  6. Step 6: Final answer
    x = 80,747.83

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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.