Home / 83,831.52-115,735.32-55,575.48

Finding the Fourth Proportional to 83,831.52, 115,735.32 and 55,575.48

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Solution

The fourth proportional to 83,831.52, 115,735.32 and 55,575.48 is: 76,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.52 : 115,735.32 = 55,575.48 : x
  2. Step 2: Convert to fraction form
    83,831.52/115,735.32 = 55,575.48/x
  3. Step 3: Cross multiply
    83,831.52x = 115,735.32 × 55,575.48
  4. Step 4: Simplify right side
    83,831.52x = 6,432,045,961.95
  5. Step 5: Solve for x
    x = 6,432,045,961.95/83,831.52
  6. Step 6: Final answer
    x = 76,725.87

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1.5x scale

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.