Home / 75,138.73-112,529.18-43,482.04

Finding the Fourth Proportional to 75,138.73, 112,529.18 and 43,482.04

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Solution

The fourth proportional to 75,138.73, 112,529.18 and 43,482.04 is: 65,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,138.73 : 112,529.18 = 43,482.04 : x
  2. Step 2: Convert to fraction form
    75,138.73/112,529.18 = 43,482.04/x
  3. Step 3: Cross multiply
    75,138.73x = 112,529.18 × 43,482.04
  4. Step 4: Simplify right side
    75,138.73x = 4,892,998,133.31
  5. Step 5: Solve for x
    x = 4,892,998,133.31/75,138.73
  6. Step 6: Final answer
    x = 65,119.52

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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.