Home / 109,904.32-164,741.55-50,778.78

Finding the Fourth Proportional to 109,904.32, 164,741.55 and 50,778.78

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Solution

The fourth proportional to 109,904.32, 164,741.55 and 50,778.78 is: 76,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,904.32 : 164,741.55 = 50,778.78 : x
  2. Step 2: Convert to fraction form
    109,904.32/164,741.55 = 50,778.78/x
  3. Step 3: Cross multiply
    109,904.32x = 164,741.55 × 50,778.78
  4. Step 4: Simplify right side
    109,904.32x = 8,365,374,924.31
  5. Step 5: Solve for x
    x = 8,365,374,924.31/109,904.32
  6. Step 6: Final answer
    x = 76,115.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.