Home / 91,122.03-136,682.24-28,792.53

Finding the Fourth Proportional to 91,122.03, 136,682.24 and 28,792.53

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Solution

The fourth proportional to 91,122.03, 136,682.24 and 28,792.53 is: 43,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.03 : 136,682.24 = 28,792.53 : x
  2. Step 2: Convert to fraction form
    91,122.03/136,682.24 = 28,792.53/x
  3. Step 3: Cross multiply
    91,122.03x = 136,682.24 × 28,792.53
  4. Step 4: Simplify right side
    91,122.03x = 3,935,427,351.70
  5. Step 5: Solve for x
    x = 3,935,427,351.70/91,122.03
  6. Step 6: Final answer
    x = 43,188.54

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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.