Home / 84,918.24-117,184.32-47,191.68

Finding the Fourth Proportional to 84,918.24, 117,184.32 and 47,191.68

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Solution

The fourth proportional to 84,918.24, 117,184.32 and 47,191.68 is: 65,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,918.24 : 117,184.32 = 47,191.68 : x
  2. Step 2: Convert to fraction form
    84,918.24/117,184.32 = 47,191.68/x
  3. Step 3: Cross multiply
    84,918.24x = 117,184.32 × 47,191.68
  4. Step 4: Simplify right side
    84,918.24x = 5,530,124,930.46
  5. Step 5: Solve for x
    x = 5,530,124,930.46/84,918.24
  6. Step 6: Final answer
    x = 65,122.93

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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.