Home / 66,560.20-99,790.38-40,259.56

Finding the Fourth Proportional to 66,560.20, 99,790.38 and 40,259.56

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Solution

The fourth proportional to 66,560.20, 99,790.38 and 40,259.56 is: 60,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,560.20 : 99,790.38 = 40,259.56 : x
  2. Step 2: Convert to fraction form
    66,560.20/99,790.38 = 40,259.56/x
  3. Step 3: Cross multiply
    66,560.20x = 99,790.38 × 40,259.56
  4. Step 4: Simplify right side
    66,560.20x = 4,017,516,791.03
  5. Step 5: Solve for x
    x = 4,017,516,791.03/66,560.20
  6. Step 6: Final answer
    x = 60,359.15

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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.