Home / 57,680.21-86,519.80-18,237.35

Finding the Fourth Proportional to 57,680.21, 86,519.80 and 18,237.35

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Solution

The fourth proportional to 57,680.21, 86,519.80 and 18,237.35 is: 27,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.21 : 86,519.80 = 18,237.35 : x
  2. Step 2: Convert to fraction form
    57,680.21/86,519.80 = 18,237.35/x
  3. Step 3: Cross multiply
    57,680.21x = 86,519.80 × 18,237.35
  4. Step 4: Simplify right side
    57,680.21x = 1,577,891,874.53
  5. Step 5: Solve for x
    x = 1,577,891,874.53/57,680.21
  6. Step 6: Final answer
    x = 27,355.86

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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.