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Finding the Fourth Proportional to 52,745.96, 79,118.76 and 21,581.22

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Solution

The fourth proportional to 52,745.96, 79,118.76 and 21,581.22 is: 32,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,745.96 : 79,118.76 = 21,581.22 : x
  2. Step 2: Convert to fraction form
    52,745.96/79,118.76 = 21,581.22/x
  3. Step 3: Cross multiply
    52,745.96x = 79,118.76 × 21,581.22
  4. Step 4: Simplify right side
    52,745.96x = 1,707,479,365.69
  5. Step 5: Solve for x
    x = 1,707,479,365.69/52,745.96
  6. Step 6: Final answer
    x = 32,371.76

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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.