Home / 91,380.44-136,965.70-57,201.57

Finding the Fourth Proportional to 91,380.44, 136,965.70 and 57,201.57

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Solution

The fourth proportional to 91,380.44, 136,965.70 and 57,201.57 is: 85,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,380.44 : 136,965.70 = 57,201.57 : x
  2. Step 2: Convert to fraction form
    91,380.44/136,965.70 = 57,201.57/x
  3. Step 3: Cross multiply
    91,380.44x = 136,965.70 × 57,201.57
  4. Step 4: Simplify right side
    91,380.44x = 7,834,653,147.65
  5. Step 5: Solve for x
    x = 7,834,653,147.65/91,380.44
  6. Step 6: Final answer
    x = 85,736.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.