Home / 75,685.68-113,489.64-34,110

Finding the Fourth Proportional to 75,685.68, 113,489.64 and 34,110

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Solution

The fourth proportional to 75,685.68, 113,489.64 and 34,110 is: 51,147.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.68 : 113,489.64 = 34,110 : x
  2. Step 2: Convert to fraction form
    75,685.68/113,489.64 = 34,110/x
  3. Step 3: Cross multiply
    75,685.68x = 113,489.64 × 34,110
  4. Step 4: Simplify right side
    75,685.68x = 3,871,131,620.40
  5. Step 5: Solve for x
    x = 3,871,131,620.40/75,685.68
  6. Step 6: Final answer
    x = 51,147.48

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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.