Home / 87,935.52-121,348.08-49,696.56

Finding the Fourth Proportional to 87,935.52, 121,348.08 and 49,696.56

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Solution

The fourth proportional to 87,935.52, 121,348.08 and 49,696.56 is: 68,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935.52 : 121,348.08 = 49,696.56 : x
  2. Step 2: Convert to fraction form
    87,935.52/121,348.08 = 49,696.56/x
  3. Step 3: Cross multiply
    87,935.52x = 121,348.08 × 49,696.56
  4. Step 4: Simplify right side
    87,935.52x = 6,030,582,138.60
  5. Step 5: Solve for x
    x = 6,030,582,138.60/87,935.52
  6. Step 6: Final answer
    x = 68,579.59

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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.