Home / 49,707.72-74,561.57-18,120.15

Finding the Fourth Proportional to 49,707.72, 74,561.57 and 18,120.15

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Solution

The fourth proportional to 49,707.72, 74,561.57 and 18,120.15 is: 27,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,707.72 : 74,561.57 = 18,120.15 : x
  2. Step 2: Convert to fraction form
    49,707.72/74,561.57 = 18,120.15/x
  3. Step 3: Cross multiply
    49,707.72x = 74,561.57 × 18,120.15
  4. Step 4: Simplify right side
    49,707.72x = 1,351,066,832.64
  5. Step 5: Solve for x
    x = 1,351,066,832.64/49,707.72
  6. Step 6: Final answer
    x = 27,180.22

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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.