Home / 49,728.72-74,593.30-20,147.12

Finding the Fourth Proportional to 49,728.72, 74,593.30 and 20,147.12

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Solution

The fourth proportional to 49,728.72, 74,593.30 and 20,147.12 is: 30,220.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,728.72 : 74,593.30 = 20,147.12 : x
  2. Step 2: Convert to fraction form
    49,728.72/74,593.30 = 20,147.12/x
  3. Step 3: Cross multiply
    49,728.72x = 74,593.30 × 20,147.12
  4. Step 4: Simplify right side
    49,728.72x = 1,502,840,166.30
  5. Step 5: Solve for x
    x = 1,502,840,166.30/49,728.72
  6. Step 6: Final answer
    x = 30,220.77

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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.