Home / 75,640.22-113,520.81-34,090.46

Finding the Fourth Proportional to 75,640.22, 113,520.81 and 34,090.46

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Solution

The fourth proportional to 75,640.22, 113,520.81 and 34,090.46 is: 51,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,640.22 : 113,520.81 = 34,090.46 : x
  2. Step 2: Convert to fraction form
    75,640.22/113,520.81 = 34,090.46/x
  3. Step 3: Cross multiply
    75,640.22x = 113,520.81 × 34,090.46
  4. Step 4: Simplify right side
    75,640.22x = 3,869,976,632.47
  5. Step 5: Solve for x
    x = 3,869,976,632.47/75,640.22
  6. Step 6: Final answer
    x = 51,162.95

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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.