Home / 84,625.38-126,940.29-28,466.46

Finding the Fourth Proportional to 84,625.38, 126,940.29 and 28,466.46

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Solution

The fourth proportional to 84,625.38, 126,940.29 and 28,466.46 is: 42,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,625.38 : 126,940.29 = 28,466.46 : x
  2. Step 2: Convert to fraction form
    84,625.38/126,940.29 = 28,466.46/x
  3. Step 3: Cross multiply
    84,625.38x = 126,940.29 × 28,466.46
  4. Step 4: Simplify right side
    84,625.38x = 3,613,540,687.67
  5. Step 5: Solve for x
    x = 3,613,540,687.67/84,625.38
  6. Step 6: Final answer
    x = 42,700.44

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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.