Home / 57,764.16-86,645.55-18,321.61

Finding the Fourth Proportional to 57,764.16, 86,645.55 and 18,321.61

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Solution

The fourth proportional to 57,764.16, 86,645.55 and 18,321.61 is: 27,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,764.16 : 86,645.55 = 18,321.61 : x
  2. Step 2: Convert to fraction form
    57,764.16/86,645.55 = 18,321.61/x
  3. Step 3: Cross multiply
    57,764.16x = 86,645.55 × 18,321.61
  4. Step 4: Simplify right side
    57,764.16x = 1,587,485,975.34
  5. Step 5: Solve for x
    x = 1,587,485,975.34/57,764.16
  6. Step 6: Final answer
    x = 27,482.20

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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.