Home / 53,616.90-80,436.90-18,081.78

Finding the Fourth Proportional to 53,616.90, 80,436.90 and 18,081.78

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Solution

The fourth proportional to 53,616.90, 80,436.90 and 18,081.78 is: 27,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,616.90 : 80,436.90 = 18,081.78 : x
  2. Step 2: Convert to fraction form
    53,616.90/80,436.90 = 18,081.78/x
  3. Step 3: Cross multiply
    53,616.90x = 80,436.90 × 18,081.78
  4. Step 4: Simplify right side
    53,616.90x = 1,454,442,329.68
  5. Step 5: Solve for x
    x = 1,454,442,329.68/53,616.90
  6. Step 6: Final answer
    x = 27,126.57

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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.