Home / 85,117.83-117,336.56-54,486.43

Finding the Fourth Proportional to 85,117.83, 117,336.56 and 54,486.43

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Solution

The fourth proportional to 85,117.83, 117,336.56 and 54,486.43 is: 75,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,117.83 : 117,336.56 = 54,486.43 : x
  2. Step 2: Convert to fraction form
    85,117.83/117,336.56 = 54,486.43/x
  3. Step 3: Cross multiply
    85,117.83x = 117,336.56 × 54,486.43
  4. Step 4: Simplify right side
    85,117.83x = 6,393,250,262.88
  5. Step 5: Solve for x
    x = 6,393,250,262.88/85,117.83
  6. Step 6: Final answer
    x = 75,110.59

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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.