Home / 91,136.62-125,759.82-55,346.23

Finding the Fourth Proportional to 91,136.62, 125,759.82 and 55,346.23

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Solution

The fourth proportional to 91,136.62, 125,759.82 and 55,346.23 is: 76,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,136.62 : 125,759.82 = 55,346.23 : x
  2. Step 2: Convert to fraction form
    91,136.62/125,759.82 = 55,346.23/x
  3. Step 3: Cross multiply
    91,136.62x = 125,759.82 × 55,346.23
  4. Step 4: Simplify right side
    91,136.62x = 6,960,331,922.48
  5. Step 5: Solve for x
    x = 6,960,331,922.48/91,136.62
  6. Step 6: Final answer
    x = 76,372.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.