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Finding the Fourth Proportional to 40,578.63, 60,874.49 and 12,498.68

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Solution

The fourth proportional to 40,578.63, 60,874.49 and 12,498.68 is: 18,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.63 : 60,874.49 = 12,498.68 : x
  2. Step 2: Convert to fraction form
    40,578.63/60,874.49 = 12,498.68/x
  3. Step 3: Cross multiply
    40,578.63x = 60,874.49 × 12,498.68
  4. Step 4: Simplify right side
    40,578.63x = 760,850,770.67
  5. Step 5: Solve for x
    x = 760,850,770.67/40,578.63
  6. Step 6: Final answer
    x = 18,750.04

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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.