Home / 57,981.80-86,982.42-18,534.80

Finding the Fourth Proportional to 57,981.80, 86,982.42 and 18,534.80

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Solution

The fourth proportional to 57,981.80, 86,982.42 and 18,534.80 is: 27,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.80 : 86,982.42 = 18,534.80 : x
  2. Step 2: Convert to fraction form
    57,981.80/86,982.42 = 18,534.80/x
  3. Step 3: Cross multiply
    57,981.80x = 86,982.42 × 18,534.80
  4. Step 4: Simplify right side
    57,981.80x = 1,612,201,758.22
  5. Step 5: Solve for x
    x = 1,612,201,758.22/57,981.80
  6. Step 6: Final answer
    x = 27,805.31

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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.