Home / 54,171.14-81,235.64-18,625.70

Finding the Fourth Proportional to 54,171.14, 81,235.64 and 18,625.70

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Solution

The fourth proportional to 54,171.14, 81,235.64 and 18,625.70 is: 27,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,171.14 : 81,235.64 = 18,625.70 : x
  2. Step 2: Convert to fraction form
    54,171.14/81,235.64 = 18,625.70/x
  3. Step 3: Cross multiply
    54,171.14x = 81,235.64 × 18,625.70
  4. Step 4: Simplify right side
    54,171.14x = 1,513,070,909.60
  5. Step 5: Solve for x
    x = 1,513,070,909.60/54,171.14
  6. Step 6: Final answer
    x = 27,931.31

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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.