Home / 84,131.47-126,221.05-34,247.36

Finding the Fourth Proportional to 84,131.47, 126,221.05 and 34,247.36

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Solution

The fourth proportional to 84,131.47, 126,221.05 and 34,247.36 is: 51,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,131.47 : 126,221.05 = 34,247.36 : x
  2. Step 2: Convert to fraction form
    84,131.47/126,221.05 = 34,247.36/x
  3. Step 3: Cross multiply
    84,131.47x = 126,221.05 × 34,247.36
  4. Step 4: Simplify right side
    84,131.47x = 4,322,737,738.93
  5. Step 5: Solve for x
    x = 4,322,737,738.93/84,131.47
  6. Step 6: Final answer
    x = 51,380.75

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1.5x scale

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.