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Finding the Fourth Proportional to 67,873.57, 101,806.20 and 30,423.58

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Solution

The fourth proportional to 67,873.57, 101,806.20 and 30,423.58 is: 45,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,873.57 : 101,806.20 = 30,423.58 : x
  2. Step 2: Convert to fraction form
    67,873.57/101,806.20 = 30,423.58/x
  3. Step 3: Cross multiply
    67,873.57x = 101,806.20 × 30,423.58
  4. Step 4: Simplify right side
    67,873.57x = 3,097,309,070.20
  5. Step 5: Solve for x
    x = 3,097,309,070.20/67,873.57
  6. Step 6: Final answer
    x = 45,633.51

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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.