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Finding the Fourth Proportional to 75,301.77, 112,337.48 and 69,932.68

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Solution

The fourth proportional to 75,301.77, 112,337.48 and 69,932.68 is: 104,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,301.77 : 112,337.48 = 69,932.68 : x
  2. Step 2: Convert to fraction form
    75,301.77/112,337.48 = 69,932.68/x
  3. Step 3: Cross multiply
    75,301.77x = 112,337.48 × 69,932.68
  4. Step 4: Simplify right side
    75,301.77x = 7,856,061,040.85
  5. Step 5: Solve for x
    x = 7,856,061,040.85/75,301.77
  6. Step 6: Final answer
    x = 104,327.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.