Home / 56,716.47-85,087.02-17,272.55

Finding the Fourth Proportional to 56,716.47, 85,087.02 and 17,272.55

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Solution

The fourth proportional to 56,716.47, 85,087.02 and 17,272.55 is: 25,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.47 : 85,087.02 = 17,272.55 : x
  2. Step 2: Convert to fraction form
    56,716.47/85,087.02 = 17,272.55/x
  3. Step 3: Cross multiply
    56,716.47x = 85,087.02 × 17,272.55
  4. Step 4: Simplify right side
    56,716.47x = 1,469,669,381.87
  5. Step 5: Solve for x
    x = 1,469,669,381.87/56,716.47
  6. Step 6: Final answer
    x = 25,912.57

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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.