Home / 83,119.97-114,748.35-49,138.85

Finding the Fourth Proportional to 83,119.97, 114,748.35 and 49,138.85

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Solution

The fourth proportional to 83,119.97, 114,748.35 and 49,138.85 is: 67,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,119.97 : 114,748.35 = 49,138.85 : x
  2. Step 2: Convert to fraction form
    83,119.97/114,748.35 = 49,138.85/x
  3. Step 3: Cross multiply
    83,119.97x = 114,748.35 × 49,138.85
  4. Step 4: Simplify right side
    83,119.97x = 5,638,602,061.00
  5. Step 5: Solve for x
    x = 5,638,602,061.00/83,119.97
  6. Step 6: Final answer
    x = 67,836.91

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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.