Home / 74,298.72-111,451.86-21,712.44

Finding the Fourth Proportional to 74,298.72, 111,451.86 and 21,712.44

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Solution

The fourth proportional to 74,298.72, 111,451.86 and 21,712.44 is: 32,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.72 : 111,451.86 = 21,712.44 : x
  2. Step 2: Convert to fraction form
    74,298.72/111,451.86 = 21,712.44/x
  3. Step 3: Cross multiply
    74,298.72x = 111,451.86 × 21,712.44
  4. Step 4: Simplify right side
    74,298.72x = 2,419,891,823.14
  5. Step 5: Solve for x
    x = 2,419,891,823.14/74,298.72
  6. Step 6: Final answer
    x = 32,569.76

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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.