Home / 84,143.46-126,239.13-34,259.37

Finding the Fourth Proportional to 84,143.46, 126,239.13 and 34,259.37

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Solution

The fourth proportional to 84,143.46, 126,239.13 and 34,259.37 is: 51,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,143.46 : 126,239.13 = 34,259.37 : x
  2. Step 2: Convert to fraction form
    84,143.46/126,239.13 = 34,259.37/x
  3. Step 3: Cross multiply
    84,143.46x = 126,239.13 × 34,259.37
  4. Step 4: Simplify right side
    84,143.46x = 4,324,873,063.15
  5. Step 5: Solve for x
    x = 4,324,873,063.15/84,143.46
  6. Step 6: Final answer
    x = 51,398.80

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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.