Home / 87,487.76-120,731.75-49,247.22

Finding the Fourth Proportional to 87,487.76, 120,731.75 and 49,247.22

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Solution

The fourth proportional to 87,487.76, 120,731.75 and 49,247.22 is: 67,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487.76 : 120,731.75 = 49,247.22 : x
  2. Step 2: Convert to fraction form
    87,487.76/120,731.75 = 49,247.22/x
  3. Step 3: Cross multiply
    87,487.76x = 120,731.75 × 49,247.22
  4. Step 4: Simplify right side
    87,487.76x = 5,945,703,444.42
  5. Step 5: Solve for x
    x = 5,945,703,444.42/87,487.76
  6. Step 6: Final answer
    x = 67,960.40

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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.