Home / 72,865.08-109,205.46-35,433.72

Finding the Fourth Proportional to 72,865.08, 109,205.46 and 35,433.72

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Solution

The fourth proportional to 72,865.08, 109,205.46 and 35,433.72 is: 53,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865.08 : 109,205.46 = 35,433.72 : x
  2. Step 2: Convert to fraction form
    72,865.08/109,205.46 = 35,433.72/x
  3. Step 3: Cross multiply
    72,865.08x = 109,205.46 × 35,433.72
  4. Step 4: Simplify right side
    72,865.08x = 3,869,555,692.11
  5. Step 5: Solve for x
    x = 3,869,555,692.11/72,865.08
  6. Step 6: Final answer
    x = 53,105.76

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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.