Home / 49,754.86-74,632.12-20,172.63

Finding the Fourth Proportional to 49,754.86, 74,632.12 and 20,172.63

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Solution

The fourth proportional to 49,754.86, 74,632.12 and 20,172.63 is: 30,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,754.86 : 74,632.12 = 20,172.63 : x
  2. Step 2: Convert to fraction form
    49,754.86/74,632.12 = 20,172.63/x
  3. Step 3: Cross multiply
    49,754.86x = 74,632.12 × 20,172.63
  4. Step 4: Simplify right side
    49,754.86x = 1,505,526,142.88
  5. Step 5: Solve for x
    x = 1,505,526,142.88/49,754.86
  6. Step 6: Final answer
    x = 30,258.88

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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.