Home / 91,119.25-136,680.09-31,956.65

Finding the Fourth Proportional to 91,119.25, 136,680.09 and 31,956.65

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Solution

The fourth proportional to 91,119.25, 136,680.09 and 31,956.65 is: 47,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,119.25 : 136,680.09 = 31,956.65 : x
  2. Step 2: Convert to fraction form
    91,119.25/136,680.09 = 31,956.65/x
  3. Step 3: Cross multiply
    91,119.25x = 136,680.09 × 31,956.65
  4. Step 4: Simplify right side
    91,119.25x = 4,367,837,114.70
  5. Step 5: Solve for x
    x = 4,367,837,114.70/91,119.25
  6. Step 6: Final answer
    x = 47,935.39

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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.