Home / 54,086.45-81,130.88-18,547.39

Finding the Fourth Proportional to 54,086.45, 81,130.88 and 18,547.39

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Solution

The fourth proportional to 54,086.45, 81,130.88 and 18,547.39 is: 27,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.45 : 81,130.88 = 18,547.39 : x
  2. Step 2: Convert to fraction form
    54,086.45/81,130.88 = 18,547.39/x
  3. Step 3: Cross multiply
    54,086.45x = 81,130.88 × 18,547.39
  4. Step 4: Simplify right side
    54,086.45x = 1,504,766,220.19
  5. Step 5: Solve for x
    x = 1,504,766,220.19/54,086.45
  6. Step 6: Final answer
    x = 27,821.50

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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.