Home / 43,082.20-64,633.61-20,869.61

Finding the Fourth Proportional to 43,082.20, 64,633.61 and 20,869.61

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Solution

The fourth proportional to 43,082.20, 64,633.61 and 20,869.61 is: 31,309.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,082.20 : 64,633.61 = 20,869.61 : x
  2. Step 2: Convert to fraction form
    43,082.20/64,633.61 = 20,869.61/x
  3. Step 3: Cross multiply
    43,082.20x = 64,633.61 × 20,869.61
  4. Step 4: Simplify right side
    43,082.20x = 1,348,878,233.59
  5. Step 5: Solve for x
    x = 1,348,878,233.59/43,082.20
  6. Step 6: Final answer
    x = 31,309.41

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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.