Home / 79,531.48-109,753.68-43,725.16

Finding the Fourth Proportional to 79,531.48, 109,753.68 and 43,725.16

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Solution

The fourth proportional to 79,531.48, 109,753.68 and 43,725.16 is: 60,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.48 : 109,753.68 = 43,725.16 : x
  2. Step 2: Convert to fraction form
    79,531.48/109,753.68 = 43,725.16/x
  3. Step 3: Cross multiply
    79,531.48x = 109,753.68 × 43,725.16
  4. Step 4: Simplify right side
    79,531.48x = 4,798,997,218.59
  5. Step 5: Solve for x
    x = 4,798,997,218.59/79,531.48
  6. Step 6: Final answer
    x = 60,340.85

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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.