Home / 51,233.40-70,691.40-31,100.88

Finding the Fourth Proportional to 51,233.40, 70,691.40 and 31,100.88

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Solution

The fourth proportional to 51,233.40, 70,691.40 and 31,100.88 is: 42,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,233.40 : 70,691.40 = 31,100.88 : x
  2. Step 2: Convert to fraction form
    51,233.40/70,691.40 = 31,100.88/x
  3. Step 3: Cross multiply
    51,233.40x = 70,691.40 × 31,100.88
  4. Step 4: Simplify right side
    51,233.40x = 2,198,564,748.43
  5. Step 5: Solve for x
    x = 2,198,564,748.43/51,233.40
  6. Step 6: Final answer
    x = 42,912.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.