Home / 45,140.20-67,675.74-40,509.16

Finding the Fourth Proportional to 45,140.20, 67,675.74 and 40,509.16

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Solution

The fourth proportional to 45,140.20, 67,675.74 and 40,509.16 is: 60,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,140.20 : 67,675.74 = 40,509.16 : x
  2. Step 2: Convert to fraction form
    45,140.20/67,675.74 = 40,509.16/x
  3. Step 3: Cross multiply
    45,140.20x = 67,675.74 × 40,509.16
  4. Step 4: Simplify right side
    45,140.20x = 2,741,487,379.78
  5. Step 5: Solve for x
    x = 2,741,487,379.78/45,140.20
  6. Step 6: Final answer
    x = 60,732.73

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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.