Home / 61,121.26-91,571.90-57,515.82

Finding the Fourth Proportional to 61,121.26, 91,571.90 and 57,515.82

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Solution

The fourth proportional to 61,121.26, 91,571.90 and 57,515.82 is: 86,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,121.26 : 91,571.90 = 57,515.82 : x
  2. Step 2: Convert to fraction form
    61,121.26/91,571.90 = 57,515.82/x
  3. Step 3: Cross multiply
    61,121.26x = 91,571.90 × 57,515.82
  4. Step 4: Simplify right side
    61,121.26x = 5,266,833,367.75
  5. Step 5: Solve for x
    x = 5,266,833,367.75/61,121.26
  6. Step 6: Final answer
    x = 86,170.24

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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.