Home / 40,688.45-61,029.22-12,607.88

Finding the Fourth Proportional to 40,688.45, 61,029.22 and 12,607.88

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Solution

The fourth proportional to 40,688.45, 61,029.22 and 12,607.88 is: 18,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.45 : 61,029.22 = 12,607.88 : x
  2. Step 2: Convert to fraction form
    40,688.45/61,029.22 = 12,607.88/x
  3. Step 3: Cross multiply
    40,688.45x = 61,029.22 × 12,607.88
  4. Step 4: Simplify right side
    40,688.45x = 769,449,302.69
  5. Step 5: Solve for x
    x = 769,449,302.69/40,688.45
  6. Step 6: Final answer
    x = 18,910.75

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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.