Home / 87,657.62-120,967.55-47,371.37

Finding the Fourth Proportional to 87,657.62, 120,967.55 and 47,371.37

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Solution

The fourth proportional to 87,657.62, 120,967.55 and 47,371.37 is: 65,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,657.62 : 120,967.55 = 47,371.37 : x
  2. Step 2: Convert to fraction form
    87,657.62/120,967.55 = 47,371.37/x
  3. Step 3: Cross multiply
    87,657.62x = 120,967.55 × 47,371.37
  4. Step 4: Simplify right side
    87,657.62x = 5,730,397,727.35
  5. Step 5: Solve for x
    x = 5,730,397,727.35/87,657.62
  6. Step 6: Final answer
    x = 65,372.50

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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.