Home / 84,429.47-126,644.17-31,826.65

Finding the Fourth Proportional to 84,429.47, 126,644.17 and 31,826.65

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Solution

The fourth proportional to 84,429.47, 126,644.17 and 31,826.65 is: 47,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,429.47 : 126,644.17 = 31,826.65 : x
  2. Step 2: Convert to fraction form
    84,429.47/126,644.17 = 31,826.65/x
  3. Step 3: Cross multiply
    84,429.47x = 126,644.17 × 31,826.65
  4. Step 4: Simplify right side
    84,429.47x = 4,030,659,396.30
  5. Step 5: Solve for x
    x = 4,030,659,396.30/84,429.47
  6. Step 6: Final answer
    x = 47,739.96

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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.