Home / 80,730.54-121,115.25-25,326.54

Finding the Fourth Proportional to 80,730.54, 121,115.25 and 25,326.54

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Solution

The fourth proportional to 80,730.54, 121,115.25 and 25,326.54 is: 37,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.54 : 121,115.25 = 25,326.54 : x
  2. Step 2: Convert to fraction form
    80,730.54/121,115.25 = 25,326.54/x
  3. Step 3: Cross multiply
    80,730.54x = 121,115.25 × 25,326.54
  4. Step 4: Simplify right side
    80,730.54x = 3,067,430,223.74
  5. Step 5: Solve for x
    x = 3,067,430,223.74/80,730.54
  6. Step 6: Final answer
    x = 37,995.91

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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.