Home / 99,712.82-149,444.50-49,806.85

Finding the Fourth Proportional to 99,712.82, 149,444.50 and 49,806.85

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Solution

The fourth proportional to 99,712.82, 149,444.50 and 49,806.85 is: 74,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.82 : 149,444.50 = 49,806.85 : x
  2. Step 2: Convert to fraction form
    99,712.82/149,444.50 = 49,806.85/x
  3. Step 3: Cross multiply
    99,712.82x = 149,444.50 × 49,806.85
  4. Step 4: Simplify right side
    99,712.82x = 7,443,359,296.70
  5. Step 5: Solve for x
    x = 7,443,359,296.70/99,712.82
  6. Step 6: Final answer
    x = 74,647.97

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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.