Home / 84,902.16-117,179.40-49,113.96

Finding the Fourth Proportional to 84,902.16, 117,179.40 and 49,113.96

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Solution

The fourth proportional to 84,902.16, 117,179.40 and 49,113.96 is: 67,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,902.16 : 117,179.40 = 49,113.96 : x
  2. Step 2: Convert to fraction form
    84,902.16/117,179.40 = 49,113.96/x
  3. Step 3: Cross multiply
    84,902.16x = 117,179.40 × 49,113.96
  4. Step 4: Simplify right side
    84,902.16x = 5,755,144,364.42
  5. Step 5: Solve for x
    x = 5,755,144,364.42/84,902.16
  6. Step 6: Final answer
    x = 67,785.61

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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.