Home / 79,539.05-109,764.63-43,729.31

Finding the Fourth Proportional to 79,539.05, 109,764.63 and 43,729.31

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Solution

The fourth proportional to 79,539.05, 109,764.63 and 43,729.31 is: 60,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,539.05 : 109,764.63 = 43,729.31 : x
  2. Step 2: Convert to fraction form
    79,539.05/109,764.63 = 43,729.31/x
  3. Step 3: Cross multiply
    79,539.05x = 109,764.63 × 43,729.31
  4. Step 4: Simplify right side
    79,539.05x = 4,799,931,642.73
  5. Step 5: Solve for x
    x = 4,799,931,642.73/79,539.05
  6. Step 6: Final answer
    x = 60,346.86

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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.