Home / 91,933.16-137,687.26-54,915.56

Finding the Fourth Proportional to 91,933.16, 137,687.26 and 54,915.56

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Solution

The fourth proportional to 91,933.16, 137,687.26 and 54,915.56 is: 82,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,933.16 : 137,687.26 = 54,915.56 : x
  2. Step 2: Convert to fraction form
    91,933.16/137,687.26 = 54,915.56/x
  3. Step 3: Cross multiply
    91,933.16x = 137,687.26 × 54,915.56
  4. Step 4: Simplify right side
    91,933.16x = 7,561,172,987.77
  5. Step 5: Solve for x
    x = 7,561,172,987.77/91,933.16
  6. Step 6: Final answer
    x = 82,246.42

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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.