Home / 40,742.92-61,120.05-18,561.88

Finding the Fourth Proportional to 40,742.92, 61,120.05 and 18,561.88

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Solution

The fourth proportional to 40,742.92, 61,120.05 and 18,561.88 is: 27,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742.92 : 61,120.05 = 18,561.88 : x
  2. Step 2: Convert to fraction form
    40,742.92/61,120.05 = 18,561.88/x
  3. Step 3: Cross multiply
    40,742.92x = 61,120.05 × 18,561.88
  4. Step 4: Simplify right side
    40,742.92x = 1,134,503,033.69
  5. Step 5: Solve for x
    x = 1,134,503,033.69/40,742.92
  6. Step 6: Final answer
    x = 27,845.40

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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.