Home / 80,922.65-121,385.09-31,005.27

Finding the Fourth Proportional to 80,922.65, 121,385.09 and 31,005.27

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Solution

The fourth proportional to 80,922.65, 121,385.09 and 31,005.27 is: 46,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,922.65 : 121,385.09 = 31,005.27 : x
  2. Step 2: Convert to fraction form
    80,922.65/121,385.09 = 31,005.27/x
  3. Step 3: Cross multiply
    80,922.65x = 121,385.09 × 31,005.27
  4. Step 4: Simplify right side
    80,922.65x = 3,763,577,566.94
  5. Step 5: Solve for x
    x = 3,763,577,566.94/80,922.65
  6. Step 6: Final answer
    x = 46,508.34

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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.