Home / 83,717.62-115,479.12-49,703.02

Finding the Fourth Proportional to 83,717.62, 115,479.12 and 49,703.02

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Solution

The fourth proportional to 83,717.62, 115,479.12 and 49,703.02 is: 68,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.62 : 115,479.12 = 49,703.02 : x
  2. Step 2: Convert to fraction form
    83,717.62/115,479.12 = 49,703.02/x
  3. Step 3: Cross multiply
    83,717.62x = 115,479.12 × 49,703.02
  4. Step 4: Simplify right side
    83,717.62x = 5,739,661,010.94
  5. Step 5: Solve for x
    x = 5,739,661,010.94/83,717.62
  6. Step 6: Final answer
    x = 68,559.77

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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.