Home / 73,742.38-101,764.68-40,208.38

Finding the Fourth Proportional to 73,742.38, 101,764.68 and 40,208.38

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Solution

The fourth proportional to 73,742.38, 101,764.68 and 40,208.38 is: 55,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,742.38 : 101,764.68 = 40,208.38 : x
  2. Step 2: Convert to fraction form
    73,742.38/101,764.68 = 40,208.38/x
  3. Step 3: Cross multiply
    73,742.38x = 101,764.68 × 40,208.38
  4. Step 4: Simplify right side
    73,742.38x = 4,091,792,924.02
  5. Step 5: Solve for x
    x = 4,091,792,924.02/73,742.38
  6. Step 6: Final answer
    x = 55,487.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.