Home / 91,378.70-137,099.16-49,262.84

Finding the Fourth Proportional to 91,378.70, 137,099.16 and 49,262.84

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Solution

The fourth proportional to 91,378.70, 137,099.16 and 49,262.84 is: 73,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,378.70 : 137,099.16 = 49,262.84 : x
  2. Step 2: Convert to fraction form
    91,378.70/137,099.16 = 49,262.84/x
  3. Step 3: Cross multiply
    91,378.70x = 137,099.16 × 49,262.84
  4. Step 4: Simplify right side
    91,378.70x = 6,753,893,983.21
  5. Step 5: Solve for x
    x = 6,753,893,983.21/91,378.70
  6. Step 6: Final answer
    x = 73,911.03

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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.