Home / 54,045.50-81,068.61-17,109.50

Finding the Fourth Proportional to 54,045.50, 81,068.61 and 17,109.50

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Solution

The fourth proportional to 54,045.50, 81,068.61 and 17,109.50 is: 25,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,045.50 : 81,068.61 = 17,109.50 : x
  2. Step 2: Convert to fraction form
    54,045.50/81,068.61 = 17,109.50/x
  3. Step 3: Cross multiply
    54,045.50x = 81,068.61 × 17,109.50
  4. Step 4: Simplify right side
    54,045.50x = 1,387,043,382.80
  5. Step 5: Solve for x
    x = 1,387,043,382.80/54,045.50
  6. Step 6: Final answer
    x = 25,664.36

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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.