Home / 51,894.14-71,615.68-30,691.58

Finding the Fourth Proportional to 51,894.14, 71,615.68 and 30,691.58

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Solution

The fourth proportional to 51,894.14, 71,615.68 and 30,691.58 is: 42,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,894.14 : 71,615.68 = 30,691.58 : x
  2. Step 2: Convert to fraction form
    51,894.14/71,615.68 = 30,691.58/x
  3. Step 3: Cross multiply
    51,894.14x = 71,615.68 × 30,691.58
  4. Step 4: Simplify right side
    51,894.14x = 2,197,998,371.97
  5. Step 5: Solve for x
    x = 2,197,998,371.97/51,894.14
  6. Step 6: Final answer
    x = 42,355.43

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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.