Home / 73,431.11-110,144.73-20,840.60

Finding the Fourth Proportional to 73,431.11, 110,144.73 and 20,840.60

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Solution

The fourth proportional to 73,431.11, 110,144.73 and 20,840.60 is: 31,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,431.11 : 110,144.73 = 20,840.60 : x
  2. Step 2: Convert to fraction form
    73,431.11/110,144.73 = 20,840.60/x
  3. Step 3: Cross multiply
    73,431.11x = 110,144.73 × 20,840.60
  4. Step 4: Simplify right side
    73,431.11x = 2,295,482,260.04
  5. Step 5: Solve for x
    x = 2,295,482,260.04/73,431.11
  6. Step 6: Final answer
    x = 31,260.35

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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.