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Finding the Fourth Proportional to 75,079.68, 112,590.84 and 30,682.56

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Solution

The fourth proportional to 75,079.68, 112,590.84 and 30,682.56 is: 46,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,079.68 : 112,590.84 = 30,682.56 : x
  2. Step 2: Convert to fraction form
    75,079.68/112,590.84 = 30,682.56/x
  3. Step 3: Cross multiply
    75,079.68x = 112,590.84 × 30,682.56
  4. Step 4: Simplify right side
    75,079.68x = 3,454,575,203.75
  5. Step 5: Solve for x
    x = 3,454,575,203.75/75,079.68
  6. Step 6: Final answer
    x = 46,012.12

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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.