Home / 83,651.45-115,388.28-49,637.52

Finding the Fourth Proportional to 83,651.45, 115,388.28 and 49,637.52

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Solution

The fourth proportional to 83,651.45, 115,388.28 and 49,637.52 is: 68,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,651.45 : 115,388.28 = 49,637.52 : x
  2. Step 2: Convert to fraction form
    83,651.45/115,388.28 = 49,637.52/x
  3. Step 3: Cross multiply
    83,651.45x = 115,388.28 × 49,637.52
  4. Step 4: Simplify right side
    83,651.45x = 5,727,587,808.08
  5. Step 5: Solve for x
    x = 5,727,587,808.08/83,651.45
  6. Step 6: Final answer
    x = 68,469.68

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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.