Home / 84,428.10-126,642.15-22,098.60

Finding the Fourth Proportional to 84,428.10, 126,642.15 and 22,098.60

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Solution

The fourth proportional to 84,428.10, 126,642.15 and 22,098.60 is: 33,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,428.10 : 126,642.15 = 22,098.60 : x
  2. Step 2: Convert to fraction form
    84,428.10/126,642.15 = 22,098.60/x
  3. Step 3: Cross multiply
    84,428.10x = 126,642.15 × 22,098.60
  4. Step 4: Simplify right side
    84,428.10x = 2,798,614,215.99
  5. Step 5: Solve for x
    x = 2,798,614,215.99/84,428.10
  6. Step 6: Final answer
    x = 33,147.90

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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.