Home / 72,422.07-108,643.46-27,431.30

Finding the Fourth Proportional to 72,422.07, 108,643.46 and 27,431.30

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Solution

The fourth proportional to 72,422.07, 108,643.46 and 27,431.30 is: 41,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,422.07 : 108,643.46 = 27,431.30 : x
  2. Step 2: Convert to fraction form
    72,422.07/108,643.46 = 27,431.30/x
  3. Step 3: Cross multiply
    72,422.07x = 108,643.46 × 27,431.30
  4. Step 4: Simplify right side
    72,422.07x = 2,980,231,344.30
  5. Step 5: Solve for x
    x = 2,980,231,344.30/72,422.07
  6. Step 6: Final answer
    x = 41,150.87

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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.