Home / 84,100.97-126,151.44-57,725.75

Finding the Fourth Proportional to 84,100.97, 126,151.44 and 57,725.75

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Solution

The fourth proportional to 84,100.97, 126,151.44 and 57,725.75 is: 86,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,100.97 : 126,151.44 = 57,725.75 : x
  2. Step 2: Convert to fraction form
    84,100.97/126,151.44 = 57,725.75/x
  3. Step 3: Cross multiply
    84,100.97x = 126,151.44 × 57,725.75
  4. Step 4: Simplify right side
    84,100.97x = 7,282,186,586.49
  5. Step 5: Solve for x
    x = 7,282,186,586.49/84,100.97
  6. Step 6: Final answer
    x = 86,588.61

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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.