Home / 52,728.44-79,121.82-21,585.56

Finding the Fourth Proportional to 52,728.44, 79,121.82 and 21,585.56

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Solution

The fourth proportional to 52,728.44, 79,121.82 and 21,585.56 is: 32,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,728.44 : 79,121.82 = 21,585.56 : x
  2. Step 2: Convert to fraction form
    52,728.44/79,121.82 = 21,585.56/x
  3. Step 3: Cross multiply
    52,728.44x = 79,121.82 × 21,585.56
  4. Step 4: Simplify right side
    52,728.44x = 1,707,888,792.92
  5. Step 5: Solve for x
    x = 1,707,888,792.92/52,728.44
  6. Step 6: Final answer
    x = 32,390.28

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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.