Home / 73,977.84-110,972.16-21,387.60

Finding the Fourth Proportional to 73,977.84, 110,972.16 and 21,387.60

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Solution

The fourth proportional to 73,977.84, 110,972.16 and 21,387.60 is: 32,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,977.84 : 110,972.16 = 21,387.60 : x
  2. Step 2: Convert to fraction form
    73,977.84/110,972.16 = 21,387.60/x
  3. Step 3: Cross multiply
    73,977.84x = 110,972.16 × 21,387.60
  4. Step 4: Simplify right side
    73,977.84x = 2,373,428,169.22
  5. Step 5: Solve for x
    x = 2,373,428,169.22/73,977.84
  6. Step 6: Final answer
    x = 32,082.96

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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.