Home / 84,236.30-126,295.92-31,631.66

Finding the Fourth Proportional to 84,236.30, 126,295.92 and 31,631.66

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Solution

The fourth proportional to 84,236.30, 126,295.92 and 31,631.66 is: 47,425.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,236.30 : 126,295.92 = 31,631.66 : x
  2. Step 2: Convert to fraction form
    84,236.30/126,295.92 = 31,631.66/x
  3. Step 3: Cross multiply
    84,236.30x = 126,295.92 × 31,631.66
  4. Step 4: Simplify right side
    84,236.30x = 3,994,949,600.83
  5. Step 5: Solve for x
    x = 3,994,949,600.83/84,236.30
  6. Step 6: Final answer
    x = 47,425.51

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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.