Home / 83,861.06-115,729.02-45,620.96

Finding the Fourth Proportional to 83,861.06, 115,729.02 and 45,620.96

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Solution

The fourth proportional to 83,861.06, 115,729.02 and 45,620.96 is: 62,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.06 : 115,729.02 = 45,620.96 : x
  2. Step 2: Convert to fraction form
    83,861.06/115,729.02 = 45,620.96/x
  3. Step 3: Cross multiply
    83,861.06x = 115,729.02 × 45,620.96
  4. Step 4: Simplify right side
    83,861.06x = 5,279,668,413.61
  5. Step 5: Solve for x
    x = 5,279,668,413.61/83,861.06
  6. Step 6: Final answer
    x = 62,957.33

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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.