Home / 87,605.26-131,490.90-54,224.34

Finding the Fourth Proportional to 87,605.26, 131,490.90 and 54,224.34

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Solution

The fourth proportional to 87,605.26, 131,490.90 and 54,224.34 is: 81,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,605.26 : 131,490.90 = 54,224.34 : x
  2. Step 2: Convert to fraction form
    87,605.26/131,490.90 = 54,224.34/x
  3. Step 3: Cross multiply
    87,605.26x = 131,490.90 × 54,224.34
  4. Step 4: Simplify right side
    87,605.26x = 7,130,007,268.51
  5. Step 5: Solve for x
    x = 7,130,007,268.51/87,605.26
  6. Step 6: Final answer
    x = 81,387.89

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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.