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Finding the Fourth Proportional to 71,452.68, 107,189.96 and 18,866.27

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Solution

The fourth proportional to 71,452.68, 107,189.96 and 18,866.27 is: 28,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,452.68 : 107,189.96 = 18,866.27 : x
  2. Step 2: Convert to fraction form
    71,452.68/107,189.96 = 18,866.27/x
  3. Step 3: Cross multiply
    71,452.68x = 107,189.96 × 18,866.27
  4. Step 4: Simplify right side
    71,452.68x = 2,022,274,096.37
  5. Step 5: Solve for x
    x = 2,022,274,096.37/71,452.68
  6. Step 6: Final answer
    x = 28,302.28

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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.