Home / 85,394.17-128,108-32,799.61

Finding the Fourth Proportional to 85,394.17, 128,108 and 32,799.61

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Solution

The fourth proportional to 85,394.17, 128,108 and 32,799.61 is: 49,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,394.17 : 128,108 = 32,799.61 : x
  2. Step 2: Convert to fraction form
    85,394.17/128,108 = 32,799.61/x
  3. Step 3: Cross multiply
    85,394.17x = 128,108 × 32,799.61
  4. Step 4: Simplify right side
    85,394.17x = 4,201,892,437.88
  5. Step 5: Solve for x
    x = 4,201,892,437.88/85,394.17
  6. Step 6: Final answer
    x = 49,205.85

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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.