Home / 83,724.84-115,536.78-49,736.43

Finding the Fourth Proportional to 83,724.84, 115,536.78 and 49,736.43

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Solution

The fourth proportional to 83,724.84, 115,536.78 and 49,736.43 is: 68,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,724.84 : 115,536.78 = 49,736.43 : x
  2. Step 2: Convert to fraction form
    83,724.84/115,536.78 = 49,736.43/x
  3. Step 3: Cross multiply
    83,724.84x = 115,536.78 × 49,736.43
  4. Step 4: Simplify right side
    83,724.84x = 5,746,386,970.90
  5. Step 5: Solve for x
    x = 5,746,386,970.90/83,724.84
  6. Step 6: Final answer
    x = 68,634.19

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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.