Home / 84,416.94-126,644.13-31,826.88

Finding the Fourth Proportional to 84,416.94, 126,644.13 and 31,826.88

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Solution

The fourth proportional to 84,416.94, 126,644.13 and 31,826.88 is: 47,747.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,416.94 : 126,644.13 = 31,826.88 : x
  2. Step 2: Convert to fraction form
    84,416.94/126,644.13 = 31,826.88/x
  3. Step 3: Cross multiply
    84,416.94x = 126,644.13 × 31,826.88
  4. Step 4: Simplify right side
    84,416.94x = 4,030,687,528.21
  5. Step 5: Solve for x
    x = 4,030,687,528.21/84,416.94
  6. Step 6: Final answer
    x = 47,747.38

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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.