Home / 54,113.45-81,171.59-25,643.72

Finding the Fourth Proportional to 54,113.45, 81,171.59 and 25,643.72

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Solution

The fourth proportional to 54,113.45, 81,171.59 and 25,643.72 is: 38,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,113.45 : 81,171.59 = 25,643.72 : x
  2. Step 2: Convert to fraction form
    54,113.45/81,171.59 = 25,643.72/x
  3. Step 3: Cross multiply
    54,113.45x = 81,171.59 × 25,643.72
  4. Step 4: Simplify right side
    54,113.45x = 2,081,540,991.84
  5. Step 5: Solve for x
    x = 2,081,540,991.84/54,113.45
  6. Step 6: Final answer
    x = 38,466.24

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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.