Home / 72,622.28-108,907.32-25,865.84

Finding the Fourth Proportional to 72,622.28, 108,907.32 and 25,865.84

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Solution

The fourth proportional to 72,622.28, 108,907.32 and 25,865.84 is: 38,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,622.28 : 108,907.32 = 25,865.84 : x
  2. Step 2: Convert to fraction form
    72,622.28/108,907.32 = 25,865.84/x
  3. Step 3: Cross multiply
    72,622.28x = 108,907.32 × 25,865.84
  4. Step 4: Simplify right side
    72,622.28x = 2,816,979,313.95
  5. Step 5: Solve for x
    x = 2,816,979,313.95/72,622.28
  6. Step 6: Final answer
    x = 38,789.46

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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.