Home / 83,278.07-114,920.86-47,479.61

Finding the Fourth Proportional to 83,278.07, 114,920.86 and 47,479.61

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Solution

The fourth proportional to 83,278.07, 114,920.86 and 47,479.61 is: 65,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,278.07 : 114,920.86 = 47,479.61 : x
  2. Step 2: Convert to fraction form
    83,278.07/114,920.86 = 47,479.61/x
  3. Step 3: Cross multiply
    83,278.07x = 114,920.86 × 47,479.61
  4. Step 4: Simplify right side
    83,278.07x = 5,456,397,613.66
  5. Step 5: Solve for x
    x = 5,456,397,613.66/83,278.07
  6. Step 6: Final answer
    x = 65,520.22

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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.