Home / 72,216.32-108,329.94-19,625.04

Finding the Fourth Proportional to 72,216.32, 108,329.94 and 19,625.04

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Solution

The fourth proportional to 72,216.32, 108,329.94 and 19,625.04 is: 29,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216.32 : 108,329.94 = 19,625.04 : x
  2. Step 2: Convert to fraction form
    72,216.32/108,329.94 = 19,625.04/x
  3. Step 3: Cross multiply
    72,216.32x = 108,329.94 × 19,625.04
  4. Step 4: Simplify right side
    72,216.32x = 2,125,979,405.70
  5. Step 5: Solve for x
    x = 2,125,979,405.70/72,216.32
  6. Step 6: Final answer
    x = 29,439.05

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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.