Home / 84,454.92-126,631.20-42,285.96

Finding the Fourth Proportional to 84,454.92, 126,631.20 and 42,285.96

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Solution

The fourth proportional to 84,454.92, 126,631.20 and 42,285.96 is: 63,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,454.92 : 126,631.20 = 42,285.96 : x
  2. Step 2: Convert to fraction form
    84,454.92/126,631.20 = 42,285.96/x
  3. Step 3: Cross multiply
    84,454.92x = 126,631.20 × 42,285.96
  4. Step 4: Simplify right side
    84,454.92x = 5,354,721,857.95
  5. Step 5: Solve for x
    x = 5,354,721,857.95/84,454.92
  6. Step 6: Final answer
    x = 63,403.31

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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.