Home / 54,087.71-81,125.42-14,647.90

Finding the Fourth Proportional to 54,087.71, 81,125.42 and 14,647.90

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Solution

The fourth proportional to 54,087.71, 81,125.42 and 14,647.90 is: 21,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,087.71 : 81,125.42 = 14,647.90 : x
  2. Step 2: Convert to fraction form
    54,087.71/81,125.42 = 14,647.90/x
  3. Step 3: Cross multiply
    54,087.71x = 81,125.42 × 14,647.90
  4. Step 4: Simplify right side
    54,087.71x = 1,188,317,039.62
  5. Step 5: Solve for x
    x = 1,188,317,039.62/54,087.71
  6. Step 6: Final answer
    x = 21,970.19

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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.