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Finding the Fourth Proportional to 71,941.68, 107,924.04 and 30,389.04

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Solution

The fourth proportional to 71,941.68, 107,924.04 and 30,389.04 is: 45,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,941.68 : 107,924.04 = 30,389.04 : x
  2. Step 2: Convert to fraction form
    71,941.68/107,924.04 = 30,389.04/x
  3. Step 3: Cross multiply
    71,941.68x = 107,924.04 × 30,389.04
  4. Step 4: Simplify right side
    71,941.68x = 3,279,707,968.52
  5. Step 5: Solve for x
    x = 3,279,707,968.52/71,941.68
  6. Step 6: Final answer
    x = 45,588.43

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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.