Home / 91,965.15-137,950.32-25,405.29

Finding the Fourth Proportional to 91,965.15, 137,950.32 and 25,405.29

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Solution

The fourth proportional to 91,965.15, 137,950.32 and 25,405.29 is: 38,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,965.15 : 137,950.32 = 25,405.29 : x
  2. Step 2: Convert to fraction form
    91,965.15/137,950.32 = 25,405.29/x
  3. Step 3: Cross multiply
    91,965.15x = 137,950.32 × 25,405.29
  4. Step 4: Simplify right side
    91,965.15x = 3,504,667,195.44
  5. Step 5: Solve for x
    x = 3,504,667,195.44/91,965.15
  6. Step 6: Final answer
    x = 38,108.65

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1.5x scale

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.