Home / 87,373.72-120,572.16-49,132.18

Finding the Fourth Proportional to 87,373.72, 120,572.16 and 49,132.18

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Solution

The fourth proportional to 87,373.72, 120,572.16 and 49,132.18 is: 67,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,373.72 : 120,572.16 = 49,132.18 : x
  2. Step 2: Convert to fraction form
    87,373.72/120,572.16 = 49,132.18/x
  3. Step 3: Cross multiply
    87,373.72x = 120,572.16 × 49,132.18
  4. Step 4: Simplify right side
    87,373.72x = 5,923,973,068.11
  5. Step 5: Solve for x
    x = 5,923,973,068.11/87,373.72
  6. Step 6: Final answer
    x = 67,800.40

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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.