Home / 84,251.60-126,342.26-34,297.78

Finding the Fourth Proportional to 84,251.60, 126,342.26 and 34,297.78

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Solution

The fourth proportional to 84,251.60, 126,342.26 and 34,297.78 is: 51,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251.60 : 126,342.26 = 34,297.78 : x
  2. Step 2: Convert to fraction form
    84,251.60/126,342.26 = 34,297.78/x
  3. Step 3: Cross multiply
    84,251.60x = 126,342.26 × 34,297.78
  4. Step 4: Simplify right side
    84,251.60x = 4,333,259,038.18
  5. Step 5: Solve for x
    x = 4,333,259,038.18/84,251.60
  6. Step 6: Final answer
    x = 51,432.36

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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.