Home / 83,546.72-115,283.78-47,739.06

Finding the Fourth Proportional to 83,546.72, 115,283.78 and 47,739.06

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Solution

The fourth proportional to 83,546.72, 115,283.78 and 47,739.06 is: 65,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,546.72 : 115,283.78 = 47,739.06 : x
  2. Step 2: Convert to fraction form
    83,546.72/115,283.78 = 47,739.06/x
  3. Step 3: Cross multiply
    83,546.72x = 115,283.78 × 47,739.06
  4. Step 4: Simplify right side
    83,546.72x = 5,503,539,290.45
  5. Step 5: Solve for x
    x = 5,503,539,290.45/83,546.72
  6. Step 6: Final answer
    x = 65,873.79

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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.