Home / 54,121-81,182.72-18,582.25

Finding the Fourth Proportional to 54,121, 81,182.72 and 18,582.25

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Solution

The fourth proportional to 54,121, 81,182.72 and 18,582.25 is: 27,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,121 : 81,182.72 = 18,582.25 : x
  2. Step 2: Convert to fraction form
    54,121/81,182.72 = 18,582.25/x
  3. Step 3: Cross multiply
    54,121x = 81,182.72 × 18,582.25
  4. Step 4: Simplify right side
    54,121x = 1,508,557,598.72
  5. Step 5: Solve for x
    x = 1,508,557,598.72/54,121
  6. Step 6: Final answer
    x = 27,873.79

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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.