Home / 84,195.13-126,292.38-21,865.63

Finding the Fourth Proportional to 84,195.13, 126,292.38 and 21,865.63

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Solution

The fourth proportional to 84,195.13, 126,292.38 and 21,865.63 is: 32,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,195.13 : 126,292.38 = 21,865.63 : x
  2. Step 2: Convert to fraction form
    84,195.13/126,292.38 = 21,865.63/x
  3. Step 3: Cross multiply
    84,195.13x = 126,292.38 × 21,865.63
  4. Step 4: Simplify right side
    84,195.13x = 2,761,462,452.90
  5. Step 5: Solve for x
    x = 2,761,462,452.90/84,195.13
  6. Step 6: Final answer
    x = 32,798.36

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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.