Home / 83,861.52-115,776.84-55,605.60

Finding the Fourth Proportional to 83,861.52, 115,776.84 and 55,605.60

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Solution

The fourth proportional to 83,861.52, 115,776.84 and 55,605.60 is: 76,767.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.52 : 115,776.84 = 55,605.60 : x
  2. Step 2: Convert to fraction form
    83,861.52/115,776.84 = 55,605.60/x
  3. Step 3: Cross multiply
    83,861.52x = 115,776.84 × 55,605.60
  4. Step 4: Simplify right side
    83,861.52x = 6,437,840,654.30
  5. Step 5: Solve for x
    x = 6,437,840,654.30/83,861.52
  6. Step 6: Final answer
    x = 76,767.52

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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.