Home / 72,190.64-108,304.41-27,805.47

Finding the Fourth Proportional to 72,190.64, 108,304.41 and 27,805.47

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Solution

The fourth proportional to 72,190.64, 108,304.41 and 27,805.47 is: 41,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.64 : 108,304.41 = 27,805.47 : x
  2. Step 2: Convert to fraction form
    72,190.64/108,304.41 = 27,805.47/x
  3. Step 3: Cross multiply
    72,190.64x = 108,304.41 × 27,805.47
  4. Step 4: Simplify right side
    72,190.64x = 3,011,454,884.10
  5. Step 5: Solve for x
    x = 3,011,454,884.10/72,190.64
  6. Step 6: Final answer
    x = 41,715.31

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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.