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Finding the Fourth Proportional to 40,410.88, 60,625.86 and 12,708.88

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Solution

The fourth proportional to 40,410.88, 60,625.86 and 12,708.88 is: 19,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,410.88 : 60,625.86 = 12,708.88 : x
  2. Step 2: Convert to fraction form
    40,410.88/60,625.86 = 12,708.88/x
  3. Step 3: Cross multiply
    40,410.88x = 60,625.86 × 12,708.88
  4. Step 4: Simplify right side
    40,410.88x = 770,486,779.64
  5. Step 5: Solve for x
    x = 770,486,779.64/40,410.88
  6. Step 6: Final answer
    x = 19,066.32

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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.