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Finding the Fourth Proportional to 75,111.38, 112,674.58 and 27,738.91

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Solution

The fourth proportional to 75,111.38, 112,674.58 and 27,738.91 is: 41,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,111.38 : 112,674.58 = 27,738.91 : x
  2. Step 2: Convert to fraction form
    75,111.38/112,674.58 = 27,738.91/x
  3. Step 3: Cross multiply
    75,111.38x = 112,674.58 × 27,738.91
  4. Step 4: Simplify right side
    75,111.38x = 3,125,469,588.63
  5. Step 5: Solve for x
    x = 3,125,469,588.63/75,111.38
  6. Step 6: Final answer
    x = 41,611.13

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1.5x scale

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.