Home / 54,065.24-81,115.20-25,987.32

Finding the Fourth Proportional to 54,065.24, 81,115.20 and 25,987.32

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Solution

The fourth proportional to 54,065.24, 81,115.20 and 25,987.32 is: 38,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,065.24 : 81,115.20 = 25,987.32 : x
  2. Step 2: Convert to fraction form
    54,065.24/81,115.20 = 25,987.32/x
  3. Step 3: Cross multiply
    54,065.24x = 81,115.20 × 25,987.32
  4. Step 4: Simplify right side
    54,065.24x = 2,107,966,659.26
  5. Step 5: Solve for x
    x = 2,107,966,659.26/54,065.24
  6. Step 6: Final answer
    x = 38,989.32

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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.