Home / 84,609.36-126,881.24-45,144.95

Finding the Fourth Proportional to 84,609.36, 126,881.24 and 45,144.95

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Solution

The fourth proportional to 84,609.36, 126,881.24 and 45,144.95 is: 67,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,609.36 : 126,881.24 = 45,144.95 : x
  2. Step 2: Convert to fraction form
    84,609.36/126,881.24 = 45,144.95/x
  3. Step 3: Cross multiply
    84,609.36x = 126,881.24 × 45,144.95
  4. Step 4: Simplify right side
    84,609.36x = 5,728,046,375.61
  5. Step 5: Solve for x
    x = 5,728,046,375.61/84,609.36
  6. Step 6: Final answer
    x = 67,699.91

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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.