Home / 83,831.32-115,680.36-49,370.59

Finding the Fourth Proportional to 83,831.32, 115,680.36 and 49,370.59

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Solution

The fourth proportional to 83,831.32, 115,680.36 and 49,370.59 is: 68,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.32 : 115,680.36 = 49,370.59 : x
  2. Step 2: Convert to fraction form
    83,831.32/115,680.36 = 49,370.59/x
  3. Step 3: Cross multiply
    83,831.32x = 115,680.36 × 49,370.59
  4. Step 4: Simplify right side
    83,831.32x = 5,711,207,624.61
  5. Step 5: Solve for x
    x = 5,711,207,624.61/83,831.32
  6. Step 6: Final answer
    x = 68,127.37

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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.