Home / 84,546.41-126,834.19-28,391.92

Finding the Fourth Proportional to 84,546.41, 126,834.19 and 28,391.92

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Solution

The fourth proportional to 84,546.41, 126,834.19 and 28,391.92 is: 42,592.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,546.41 : 126,834.19 = 28,391.92 : x
  2. Step 2: Convert to fraction form
    84,546.41/126,834.19 = 28,391.92/x
  3. Step 3: Cross multiply
    84,546.41x = 126,834.19 × 28,391.92
  4. Step 4: Simplify right side
    84,546.41x = 3,601,065,787.68
  5. Step 5: Solve for x
    x = 3,601,065,787.68/84,546.41
  6. Step 6: Final answer
    x = 42,592.77

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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.