Home / 85,286.12-127,825.39-60,333.36

Finding the Fourth Proportional to 85,286.12, 127,825.39 and 60,333.36

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Solution

The fourth proportional to 85,286.12, 127,825.39 and 60,333.36 is: 90,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,286.12 : 127,825.39 = 60,333.36 : x
  2. Step 2: Convert to fraction form
    85,286.12/127,825.39 = 60,333.36/x
  3. Step 3: Cross multiply
    85,286.12x = 127,825.39 × 60,333.36
  4. Step 4: Simplify right side
    85,286.12x = 7,712,134,868.08
  5. Step 5: Solve for x
    x = 7,712,134,868.08/85,286.12
  6. Step 6: Final answer
    x = 90,426.62

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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.