Home / 78,991.02-108,997.08-50,734.98

Finding the Fourth Proportional to 78,991.02, 108,997.08 and 50,734.98

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Solution

The fourth proportional to 78,991.02, 108,997.08 and 50,734.98 is: 70,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,991.02 : 108,997.08 = 50,734.98 : x
  2. Step 2: Convert to fraction form
    78,991.02/108,997.08 = 50,734.98/x
  3. Step 3: Cross multiply
    78,991.02x = 108,997.08 × 50,734.98
  4. Step 4: Simplify right side
    78,991.02x = 5,529,964,673.86
  5. Step 5: Solve for x
    x = 5,529,964,673.86/78,991.02
  6. Step 6: Final answer
    x = 70,007.51

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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.