Home / 80,323.08-120,377.10-35,940.36

Finding the Fourth Proportional to 80,323.08, 120,377.10 and 35,940.36

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Solution

The fourth proportional to 80,323.08, 120,377.10 and 35,940.36 is: 53,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,323.08 : 120,377.10 = 35,940.36 : x
  2. Step 2: Convert to fraction form
    80,323.08/120,377.10 = 35,940.36/x
  3. Step 3: Cross multiply
    80,323.08x = 120,377.10 × 35,940.36
  4. Step 4: Simplify right side
    80,323.08x = 4,326,396,309.76
  5. Step 5: Solve for x
    x = 4,326,396,309.76/80,323.08
  6. Step 6: Final answer
    x = 53,862.43

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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.