Home / 83,143.22-114,739.89-49,628.66

Finding the Fourth Proportional to 83,143.22, 114,739.89 and 49,628.66

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Solution

The fourth proportional to 83,143.22, 114,739.89 and 49,628.66 is: 68,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,143.22 : 114,739.89 = 49,628.66 : x
  2. Step 2: Convert to fraction form
    83,143.22/114,739.89 = 49,628.66/x
  3. Step 3: Cross multiply
    83,143.22x = 114,739.89 × 49,628.66
  4. Step 4: Simplify right side
    83,143.22x = 5,694,386,989.25
  5. Step 5: Solve for x
    x = 5,694,386,989.25/83,143.22
  6. Step 6: Final answer
    x = 68,488.89

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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.