Home / 88,175.69-121,612.10-57,992.02

Finding the Fourth Proportional to 88,175.69, 121,612.10 and 57,992.02

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Solution

The fourth proportional to 88,175.69, 121,612.10 and 57,992.02 is: 79,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,175.69 : 121,612.10 = 57,992.02 : x
  2. Step 2: Convert to fraction form
    88,175.69/121,612.10 = 57,992.02/x
  3. Step 3: Cross multiply
    88,175.69x = 121,612.10 × 57,992.02
  4. Step 4: Simplify right side
    88,175.69x = 7,052,531,197.50
  5. Step 5: Solve for x
    x = 7,052,531,197.50/88,175.69
  6. Step 6: Final answer
    x = 79,982.71

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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.