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Finding the Fourth Proportional to 75,079.73, 112,629.50 and 27,728.10

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Solution

The fourth proportional to 75,079.73, 112,629.50 and 27,728.10 is: 41,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,079.73 : 112,629.50 = 27,728.10 : x
  2. Step 2: Convert to fraction form
    75,079.73/112,629.50 = 27,728.10/x
  3. Step 3: Cross multiply
    75,079.73x = 112,629.50 × 27,728.10
  4. Step 4: Simplify right side
    75,079.73x = 3,123,001,969.63
  5. Step 5: Solve for x
    x = 3,123,001,969.63/75,079.73
  6. Step 6: Final answer
    x = 41,595.81

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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.