Home / 99,344.69-137,099.28-56,911.43

Finding the Fourth Proportional to 99,344.69, 137,099.28 and 56,911.43

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Solution

The fourth proportional to 99,344.69, 137,099.28 and 56,911.43 is: 78,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.69 : 137,099.28 = 56,911.43 : x
  2. Step 2: Convert to fraction form
    99,344.69/137,099.28 = 56,911.43/x
  3. Step 3: Cross multiply
    99,344.69x = 137,099.28 × 56,911.43
  4. Step 4: Simplify right side
    99,344.69x = 7,802,515,704.93
  5. Step 5: Solve for x
    x = 7,802,515,704.93/99,344.69
  6. Step 6: Final answer
    x = 78,539.83

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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.