Home / 79,538.95-109,765.70-43,729.66

Finding the Fourth Proportional to 79,538.95, 109,765.70 and 43,729.66

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Solution

The fourth proportional to 79,538.95, 109,765.70 and 43,729.66 is: 60,348.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,538.95 : 109,765.70 = 43,729.66 : x
  2. Step 2: Convert to fraction form
    79,538.95/109,765.70 = 43,729.66/x
  3. Step 3: Cross multiply
    79,538.95x = 109,765.70 × 43,729.66
  4. Step 4: Simplify right side
    79,538.95x = 4,800,016,740.66
  5. Step 5: Solve for x
    x = 4,800,016,740.66/79,538.95
  6. Step 6: Final answer
    x = 60,348.00

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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.