Home / 83,836-115,686.66-49,375.24

Finding the Fourth Proportional to 83,836, 115,686.66 and 49,375.24

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Solution

The fourth proportional to 83,836, 115,686.66 and 49,375.24 is: 68,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,836 : 115,686.66 = 49,375.24 : x
  2. Step 2: Convert to fraction form
    83,836/115,686.66 = 49,375.24/x
  3. Step 3: Cross multiply
    83,836x = 115,686.66 × 49,375.24
  4. Step 4: Simplify right side
    83,836x = 5,712,056,602.30
  5. Step 5: Solve for x
    x = 5,712,056,602.30/83,836
  6. Step 6: Final answer
    x = 68,133.70

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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.