Home / 80,939.58-121,362.39-24,763.65

Finding the Fourth Proportional to 80,939.58, 121,362.39 and 24,763.65

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Solution

The fourth proportional to 80,939.58, 121,362.39 and 24,763.65 is: 37,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,939.58 : 121,362.39 = 24,763.65 : x
  2. Step 2: Convert to fraction form
    80,939.58/121,362.39 = 24,763.65/x
  3. Step 3: Cross multiply
    80,939.58x = 121,362.39 × 24,763.65
  4. Step 4: Simplify right side
    80,939.58x = 3,005,375,749.12
  5. Step 5: Solve for x
    x = 3,005,375,749.12/80,939.58
  6. Step 6: Final answer
    x = 37,131.10

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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.