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Finding the Fourth Proportional to 75,164.72, 112,788.36 and 43,613.36

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Solution

The fourth proportional to 75,164.72, 112,788.36 and 43,613.36 is: 65,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,164.72 : 112,788.36 = 43,613.36 : x
  2. Step 2: Convert to fraction form
    75,164.72/112,788.36 = 43,613.36/x
  3. Step 3: Cross multiply
    75,164.72x = 112,788.36 × 43,613.36
  4. Step 4: Simplify right side
    75,164.72x = 4,919,079,348.49
  5. Step 5: Solve for x
    x = 4,919,079,348.49/75,164.72
  6. Step 6: Final answer
    x = 65,443.99

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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.