Home / 91,745.62-137,585.40-31,757.80

Finding the Fourth Proportional to 91,745.62, 137,585.40 and 31,757.80

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Solution

The fourth proportional to 91,745.62, 137,585.40 and 31,757.80 is: 47,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745.62 : 137,585.40 = 31,757.80 : x
  2. Step 2: Convert to fraction form
    91,745.62/137,585.40 = 31,757.80/x
  3. Step 3: Cross multiply
    91,745.62x = 137,585.40 × 31,757.80
  4. Step 4: Simplify right side
    91,745.62x = 4,369,409,616.12
  5. Step 5: Solve for x
    x = 4,369,409,616.12/91,745.62
  6. Step 6: Final answer
    x = 47,625.27

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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.