Home / 75,115.20-103,696.56-46,836.48

Finding the Fourth Proportional to 75,115.20, 103,696.56 and 46,836.48

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Solution

The fourth proportional to 75,115.20, 103,696.56 and 46,836.48 is: 64,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.20 : 103,696.56 = 46,836.48 : x
  2. Step 2: Convert to fraction form
    75,115.20/103,696.56 = 46,836.48/x
  3. Step 3: Cross multiply
    75,115.20x = 103,696.56 × 46,836.48
  4. Step 4: Simplify right side
    75,115.20x = 4,856,781,858.51
  5. Step 5: Solve for x
    x = 4,856,781,858.51/75,115.20
  6. Step 6: Final answer
    x = 64,657.78

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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.