Home / 75,271.55-112,896.33-21,949.20

Finding the Fourth Proportional to 75,271.55, 112,896.33 and 21,949.20

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Solution

The fourth proportional to 75,271.55, 112,896.33 and 21,949.20 is: 32,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,271.55 : 112,896.33 = 21,949.20 : x
  2. Step 2: Convert to fraction form
    75,271.55/112,896.33 = 21,949.20/x
  3. Step 3: Cross multiply
    75,271.55x = 112,896.33 × 21,949.20
  4. Step 4: Simplify right side
    75,271.55x = 2,477,983,452.21
  5. Step 5: Solve for x
    x = 2,477,983,452.21/75,271.55
  6. Step 6: Final answer
    x = 32,920.59

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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.