Home / 40,742.88-61,113.83-11,160.69

Finding the Fourth Proportional to 40,742.88, 61,113.83 and 11,160.69

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Solution

The fourth proportional to 40,742.88, 61,113.83 and 11,160.69 is: 16,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742.88 : 61,113.83 = 11,160.69 : x
  2. Step 2: Convert to fraction form
    40,742.88/61,113.83 = 11,160.69/x
  3. Step 3: Cross multiply
    40,742.88x = 61,113.83 × 11,160.69
  4. Step 4: Simplify right side
    40,742.88x = 682,072,455.54
  5. Step 5: Solve for x
    x = 682,072,455.54/40,742.88
  6. Step 6: Final answer
    x = 16,740.90

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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.