Home / 84,100.80-126,151.20-57,725.58

Finding the Fourth Proportional to 84,100.80, 126,151.20 and 57,725.58

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Solution

The fourth proportional to 84,100.80, 126,151.20 and 57,725.58 is: 86,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,100.80 : 126,151.20 = 57,725.58 : x
  2. Step 2: Convert to fraction form
    84,100.80/126,151.20 = 57,725.58/x
  3. Step 3: Cross multiply
    84,100.80x = 126,151.20 × 57,725.58
  4. Step 4: Simplify right side
    84,100.80x = 7,282,151,187.70
  5. Step 5: Solve for x
    x = 7,282,151,187.70/84,100.80
  6. Step 6: Final answer
    x = 86,588.37

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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.