Home / 99,344.88-137,099.54-56,911.61

Finding the Fourth Proportional to 99,344.88, 137,099.54 and 56,911.61

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Solution

The fourth proportional to 99,344.88, 137,099.54 and 56,911.61 is: 78,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.88 : 137,099.54 = 56,911.61 : x
  2. Step 2: Convert to fraction form
    99,344.88/137,099.54 = 56,911.61/x
  3. Step 3: Cross multiply
    99,344.88x = 137,099.54 × 56,911.61
  4. Step 4: Simplify right side
    99,344.88x = 7,802,556,136.92
  5. Step 5: Solve for x
    x = 7,802,556,136.92/99,344.88
  6. Step 6: Final answer
    x = 78,540.09

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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.