Home / 71,487.10-107,231.55-18,896.12

Finding the Fourth Proportional to 71,487.10, 107,231.55 and 18,896.12

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Solution

The fourth proportional to 71,487.10, 107,231.55 and 18,896.12 is: 28,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,487.10 : 107,231.55 = 18,896.12 : x
  2. Step 2: Convert to fraction form
    71,487.10/107,231.55 = 18,896.12/x
  3. Step 3: Cross multiply
    71,487.10x = 107,231.55 × 18,896.12
  4. Step 4: Simplify right side
    71,487.10x = 2,026,260,236.59
  5. Step 5: Solve for x
    x = 2,026,260,236.59/71,487.10
  6. Step 6: Final answer
    x = 28,344.42

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1.5x scale

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.