Home / 85,286.24-117,757.56-55,089.20

Finding the Fourth Proportional to 85,286.24, 117,757.56 and 55,089.20

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Solution

The fourth proportional to 85,286.24, 117,757.56 and 55,089.20 is: 76,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,286.24 : 117,757.56 = 55,089.20 : x
  2. Step 2: Convert to fraction form
    85,286.24/117,757.56 = 55,089.20/x
  3. Step 3: Cross multiply
    85,286.24x = 117,757.56 × 55,089.20
  4. Step 4: Simplify right side
    85,286.24x = 6,487,169,774.35
  5. Step 5: Solve for x
    x = 6,487,169,774.35/85,286.24
  6. Step 6: Final answer
    x = 76,063.50

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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.