Home / 51,414.60-77,121.90-39,736.20

Finding the Fourth Proportional to 51,414.60, 77,121.90 and 39,736.20

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Solution

The fourth proportional to 51,414.60, 77,121.90 and 39,736.20 is: 59,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,414.60 : 77,121.90 = 39,736.20 : x
  2. Step 2: Convert to fraction form
    51,414.60/77,121.90 = 39,736.20/x
  3. Step 3: Cross multiply
    51,414.60x = 77,121.90 × 39,736.20
  4. Step 4: Simplify right side
    51,414.60x = 3,064,531,242.78
  5. Step 5: Solve for x
    x = 3,064,531,242.78/51,414.60
  6. Step 6: Final answer
    x = 59,604.30

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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.