Home / 74,175.05-111,254.37-20,868.71

Finding the Fourth Proportional to 74,175.05, 111,254.37 and 20,868.71

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Solution

The fourth proportional to 74,175.05, 111,254.37 and 20,868.71 is: 31,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.05 : 111,254.37 = 20,868.71 : x
  2. Step 2: Convert to fraction form
    74,175.05/111,254.37 = 20,868.71/x
  3. Step 3: Cross multiply
    74,175.05x = 111,254.37 × 20,868.71
  4. Step 4: Simplify right side
    74,175.05x = 2,321,734,627.49
  5. Step 5: Solve for x
    x = 2,321,734,627.49/74,175.05
  6. Step 6: Final answer
    x = 31,300.75

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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.