Home / 57,982.40-86,972.23-18,539.86

Finding the Fourth Proportional to 57,982.40, 86,972.23 and 18,539.86

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Solution

The fourth proportional to 57,982.40, 86,972.23 and 18,539.86 is: 27,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.40 : 86,972.23 = 18,539.86 : x
  2. Step 2: Convert to fraction form
    57,982.40/86,972.23 = 18,539.86/x
  3. Step 3: Cross multiply
    57,982.40x = 86,972.23 × 18,539.86
  4. Step 4: Simplify right side
    57,982.40x = 1,612,452,968.09
  5. Step 5: Solve for x
    x = 1,612,452,968.09/57,982.40
  6. Step 6: Final answer
    x = 27,809.35

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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.