Home / 83,561.48-115,319.94-55,217.96

Finding the Fourth Proportional to 83,561.48, 115,319.94 and 55,217.96

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Solution

The fourth proportional to 83,561.48, 115,319.94 and 55,217.96 is: 76,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,561.48 : 115,319.94 = 55,217.96 : x
  2. Step 2: Convert to fraction form
    83,561.48/115,319.94 = 55,217.96/x
  3. Step 3: Cross multiply
    83,561.48x = 115,319.94 × 55,217.96
  4. Step 4: Simplify right side
    83,561.48x = 6,367,731,834.12
  5. Step 5: Solve for x
    x = 6,367,731,834.12/83,561.48
  6. Step 6: Final answer
    x = 76,204.15

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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.