Home / 54,351.08-81,431.26-38,687.08

Finding the Fourth Proportional to 54,351.08, 81,431.26 and 38,687.08

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Solution

The fourth proportional to 54,351.08, 81,431.26 and 38,687.08 is: 57,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.08 : 81,431.26 = 38,687.08 : x
  2. Step 2: Convert to fraction form
    54,351.08/81,431.26 = 38,687.08/x
  3. Step 3: Cross multiply
    54,351.08x = 81,431.26 × 38,687.08
  4. Step 4: Simplify right side
    54,351.08x = 3,150,337,670.12
  5. Step 5: Solve for x
    x = 3,150,337,670.12/54,351.08
  6. Step 6: Final answer
    x = 57,962.74

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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.