Home / 87,331.50-120,536.91-55,494.18

Finding the Fourth Proportional to 87,331.50, 120,536.91 and 55,494.18

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Solution

The fourth proportional to 87,331.50, 120,536.91 and 55,494.18 is: 76,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.50 : 120,536.91 = 55,494.18 : x
  2. Step 2: Convert to fraction form
    87,331.50/120,536.91 = 55,494.18/x
  3. Step 3: Cross multiply
    87,331.50x = 120,536.91 × 55,494.18
  4. Step 4: Simplify right side
    87,331.50x = 6,689,096,980.18
  5. Step 5: Solve for x
    x = 6,689,096,980.18/87,331.50
  6. Step 6: Final answer
    x = 76,594.32

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1.5x scale

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.