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Finding the Fourth Proportional to 65,487.36, 98,231.73 and 52,422.78

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Solution

The fourth proportional to 65,487.36, 98,231.73 and 52,422.78 is: 78,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,487.36 : 98,231.73 = 52,422.78 : x
  2. Step 2: Convert to fraction form
    65,487.36/98,231.73 = 52,422.78/x
  3. Step 3: Cross multiply
    65,487.36x = 98,231.73 × 52,422.78
  4. Step 4: Simplify right side
    65,487.36x = 5,149,580,108.70
  5. Step 5: Solve for x
    x = 5,149,580,108.70/65,487.36
  6. Step 6: Final answer
    x = 78,634.72

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1.5x scale

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.