Home / 83,715.75-115,527.78-45,992.43

Finding the Fourth Proportional to 83,715.75, 115,527.78 and 45,992.43

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Solution

The fourth proportional to 83,715.75, 115,527.78 and 45,992.43 is: 63,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,715.75 : 115,527.78 = 45,992.43 : x
  2. Step 2: Convert to fraction form
    83,715.75/115,527.78 = 45,992.43/x
  3. Step 3: Cross multiply
    83,715.75x = 115,527.78 × 45,992.43
  4. Step 4: Simplify right side
    83,715.75x = 5,313,403,334.71
  5. Step 5: Solve for x
    x = 5,313,403,334.71/83,715.75
  6. Step 6: Final answer
    x = 63,469.58

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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.