Home / 40,755.68-61,142.33-12,675.21

Finding the Fourth Proportional to 40,755.68, 61,142.33 and 12,675.21

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Solution

The fourth proportional to 40,755.68, 61,142.33 and 12,675.21 is: 19,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,755.68 : 61,142.33 = 12,675.21 : x
  2. Step 2: Convert to fraction form
    40,755.68/61,142.33 = 12,675.21/x
  3. Step 3: Cross multiply
    40,755.68x = 61,142.33 × 12,675.21
  4. Step 4: Simplify right side
    40,755.68x = 774,991,872.64
  5. Step 5: Solve for x
    x = 774,991,872.64/40,755.68
  6. Step 6: Final answer
    x = 19,015.55

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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.