Home / 76,138.12-114,218.14-23,551.68

Finding the Fourth Proportional to 76,138.12, 114,218.14 and 23,551.68

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Solution

The fourth proportional to 76,138.12, 114,218.14 and 23,551.68 is: 35,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,138.12 : 114,218.14 = 23,551.68 : x
  2. Step 2: Convert to fraction form
    76,138.12/114,218.14 = 23,551.68/x
  3. Step 3: Cross multiply
    76,138.12x = 114,218.14 × 23,551.68
  4. Step 4: Simplify right side
    76,138.12x = 2,690,029,083.48
  5. Step 5: Solve for x
    x = 2,690,029,083.48/76,138.12
  6. Step 6: Final answer
    x = 35,330.91

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1.5x scale

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.