Home / 65,486.28-98,229.36-18,739.12

Finding the Fourth Proportional to 65,486.28, 98,229.36 and 18,739.12

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Solution

The fourth proportional to 65,486.28, 98,229.36 and 18,739.12 is: 28,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,486.28 : 98,229.36 = 18,739.12 : x
  2. Step 2: Convert to fraction form
    65,486.28/98,229.36 = 18,739.12/x
  3. Step 3: Cross multiply
    65,486.28x = 98,229.36 × 18,739.12
  4. Step 4: Simplify right side
    65,486.28x = 1,840,731,764.56
  5. Step 5: Solve for x
    x = 1,840,731,764.56/65,486.28
  6. Step 6: Final answer
    x = 28,108.66

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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.