Home / 65,604.20-98,382.30-21,242.60

Finding the Fourth Proportional to 65,604.20, 98,382.30 and 21,242.60

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Solution

The fourth proportional to 65,604.20, 98,382.30 and 21,242.60 is: 31,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.20 : 98,382.30 = 21,242.60 : x
  2. Step 2: Convert to fraction form
    65,604.20/98,382.30 = 21,242.60/x
  3. Step 3: Cross multiply
    65,604.20x = 98,382.30 × 21,242.60
  4. Step 4: Simplify right side
    65,604.20x = 2,089,895,845.98
  5. Step 5: Solve for x
    x = 2,089,895,845.98/65,604.20
  6. Step 6: Final answer
    x = 31,856.13

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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.