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Finding the Fourth Proportional to 63,380.89, 87,524.89 and 40,759.16

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Solution

The fourth proportional to 63,380.89, 87,524.89 and 40,759.16 is: 56,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,380.89 : 87,524.89 = 40,759.16 : x
  2. Step 2: Convert to fraction form
    63,380.89/87,524.89 = 40,759.16/x
  3. Step 3: Cross multiply
    63,380.89x = 87,524.89 × 40,759.16
  4. Step 4: Simplify right side
    63,380.89x = 3,567,440,995.49
  5. Step 5: Solve for x
    x = 3,567,440,995.49/63,380.89
  6. Step 6: Final answer
    x = 56,285.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.