Home / 84,411.66-126,554.61-28,218.52

Finding the Fourth Proportional to 84,411.66, 126,554.61 and 28,218.52

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Solution

The fourth proportional to 84,411.66, 126,554.61 and 28,218.52 is: 42,306.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,411.66 : 126,554.61 = 28,218.52 : x
  2. Step 2: Convert to fraction form
    84,411.66/126,554.61 = 28,218.52/x
  3. Step 3: Cross multiply
    84,411.66x = 126,554.61 × 28,218.52
  4. Step 4: Simplify right side
    84,411.66x = 3,571,183,793.38
  5. Step 5: Solve for x
    x = 3,571,183,793.38/84,411.66
  6. Step 6: Final answer
    x = 42,306.76

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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.