Home / 84,276.26-126,340.38-34,398.38

Finding the Fourth Proportional to 84,276.26, 126,340.38 and 34,398.38

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Solution

The fourth proportional to 84,276.26, 126,340.38 and 34,398.38 is: 51,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,276.26 : 126,340.38 = 34,398.38 : x
  2. Step 2: Convert to fraction form
    84,276.26/126,340.38 = 34,398.38/x
  3. Step 3: Cross multiply
    84,276.26x = 126,340.38 × 34,398.38
  4. Step 4: Simplify right side
    84,276.26x = 4,345,904,400.58
  5. Step 5: Solve for x
    x = 4,345,904,400.58/84,276.26
  6. Step 6: Final answer
    x = 51,567.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.