Home / 50,711.20-76,066.80-17,428.30

Finding the Fourth Proportional to 50,711.20, 76,066.80 and 17,428.30

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Solution

The fourth proportional to 50,711.20, 76,066.80 and 17,428.30 is: 26,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.20 : 76,066.80 = 17,428.30 : x
  2. Step 2: Convert to fraction form
    50,711.20/76,066.80 = 17,428.30/x
  3. Step 3: Cross multiply
    50,711.20x = 76,066.80 × 17,428.30
  4. Step 4: Simplify right side
    50,711.20x = 1,325,715,010.44
  5. Step 5: Solve for x
    x = 1,325,715,010.44/50,711.20
  6. Step 6: Final answer
    x = 26,142.45

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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.