Home / 71,080.07-106,620.23-18,489.47

Finding the Fourth Proportional to 71,080.07, 106,620.23 and 18,489.47

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Solution

The fourth proportional to 71,080.07, 106,620.23 and 18,489.47 is: 27,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,080.07 : 106,620.23 = 18,489.47 : x
  2. Step 2: Convert to fraction form
    71,080.07/106,620.23 = 18,489.47/x
  3. Step 3: Cross multiply
    71,080.07x = 106,620.23 × 18,489.47
  4. Step 4: Simplify right side
    71,080.07x = 1,971,351,057.10
  5. Step 5: Solve for x
    x = 1,971,351,057.10/71,080.07
  6. Step 6: Final answer
    x = 27,734.23

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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.