Home / 78,305.04-108,007.43-49,997.97

Finding the Fourth Proportional to 78,305.04, 108,007.43 and 49,997.97

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Solution

The fourth proportional to 78,305.04, 108,007.43 and 49,997.97 is: 68,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,305.04 : 108,007.43 = 49,997.97 : x
  2. Step 2: Convert to fraction form
    78,305.04/108,007.43 = 49,997.97/x
  3. Step 3: Cross multiply
    78,305.04x = 108,007.43 × 49,997.97
  4. Step 4: Simplify right side
    78,305.04x = 5,400,151,994.93
  5. Step 5: Solve for x
    x = 5,400,151,994.93/78,305.04
  6. Step 6: Final answer
    x = 68,963.02

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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.