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Finding the Fourth Proportional to 74,249.70, 111,362.70 and 21,646.88

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Solution

The fourth proportional to 74,249.70, 111,362.70 and 21,646.88 is: 32,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,249.70 : 111,362.70 = 21,646.88 : x
  2. Step 2: Convert to fraction form
    74,249.70/111,362.70 = 21,646.88/x
  3. Step 3: Cross multiply
    74,249.70x = 111,362.70 × 21,646.88
  4. Step 4: Simplify right side
    74,249.70x = 2,410,655,003.38
  5. Step 5: Solve for x
    x = 2,410,655,003.38/74,249.70
  6. Step 6: Final answer
    x = 32,466.87

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1.5x scale

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.