Home / 79,531.20-109,754.20-43,724.52

Finding the Fourth Proportional to 79,531.20, 109,754.20 and 43,724.52

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Solution

The fourth proportional to 79,531.20, 109,754.20 and 43,724.52 is: 60,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.20 : 109,754.20 = 43,724.52 : x
  2. Step 2: Convert to fraction form
    79,531.20/109,754.20 = 43,724.52/x
  3. Step 3: Cross multiply
    79,531.20x = 109,754.20 × 43,724.52
  4. Step 4: Simplify right side
    79,531.20x = 4,798,949,712.98
  5. Step 5: Solve for x
    x = 4,798,949,712.98/79,531.20
  6. Step 6: Final answer
    x = 60,340.47

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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.