Home / 41,121.20-61,681.80-40,343.60

Finding the Fourth Proportional to 41,121.20, 61,681.80 and 40,343.60

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Solution

The fourth proportional to 41,121.20, 61,681.80 and 40,343.60 is: 60,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,121.20 : 61,681.80 = 40,343.60 : x
  2. Step 2: Convert to fraction form
    41,121.20/61,681.80 = 40,343.60/x
  3. Step 3: Cross multiply
    41,121.20x = 61,681.80 × 40,343.60
  4. Step 4: Simplify right side
    41,121.20x = 2,488,465,866.48
  5. Step 5: Solve for x
    x = 2,488,465,866.48/41,121.20
  6. Step 6: Final answer
    x = 60,515.40

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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.