Home / 83,738.58-115,565.67-47,939.82

Finding the Fourth Proportional to 83,738.58, 115,565.67 and 47,939.82

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Solution

The fourth proportional to 83,738.58, 115,565.67 and 47,939.82 is: 66,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,738.58 : 115,565.67 = 47,939.82 : x
  2. Step 2: Convert to fraction form
    83,738.58/115,565.67 = 47,939.82/x
  3. Step 3: Cross multiply
    83,738.58x = 115,565.67 × 47,939.82
  4. Step 4: Simplify right side
    83,738.58x = 5,540,197,417.98
  5. Step 5: Solve for x
    x = 5,540,197,417.98/83,738.58
  6. Step 6: Final answer
    x = 66,160.63

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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.