Home / 84,320.44-126,469.11-28,159.36

Finding the Fourth Proportional to 84,320.44, 126,469.11 and 28,159.36

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Solution

The fourth proportional to 84,320.44, 126,469.11 and 28,159.36 is: 42,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,320.44 : 126,469.11 = 28,159.36 : x
  2. Step 2: Convert to fraction form
    84,320.44/126,469.11 = 28,159.36/x
  3. Step 3: Cross multiply
    84,320.44x = 126,469.11 × 28,159.36
  4. Step 4: Simplify right side
    84,320.44x = 3,561,289,197.37
  5. Step 5: Solve for x
    x = 3,561,289,197.37/84,320.44
  6. Step 6: Final answer
    x = 42,235.18

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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.