Home / 75,134.82-112,701.88-30,761.57

Finding the Fourth Proportional to 75,134.82, 112,701.88 and 30,761.57

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Solution

The fourth proportional to 75,134.82, 112,701.88 and 30,761.57 is: 46,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.82 : 112,701.88 = 30,761.57 : x
  2. Step 2: Convert to fraction form
    75,134.82/112,701.88 = 30,761.57/x
  3. Step 3: Cross multiply
    75,134.82x = 112,701.88 × 30,761.57
  4. Step 4: Simplify right side
    75,134.82x = 3,466,887,090.96
  5. Step 5: Solve for x
    x = 3,466,887,090.96/75,134.82
  6. Step 6: Final answer
    x = 46,142.21

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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.