Home / 57,988.71-86,986.49-18,542.75

Finding the Fourth Proportional to 57,988.71, 86,986.49 and 18,542.75

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Solution

The fourth proportional to 57,988.71, 86,986.49 and 18,542.75 is: 27,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,988.71 : 86,986.49 = 18,542.75 : x
  2. Step 2: Convert to fraction form
    57,988.71/86,986.49 = 18,542.75/x
  3. Step 3: Cross multiply
    57,988.71x = 86,986.49 × 18,542.75
  4. Step 4: Simplify right side
    57,988.71x = 1,612,968,209.80
  5. Step 5: Solve for x
    x = 1,612,968,209.80/57,988.71
  6. Step 6: Final answer
    x = 27,815.21

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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.