Home / 80,327.22-110,864.61-76,783.74

Finding the Fourth Proportional to 80,327.22, 110,864.61 and 76,783.74

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Solution

The fourth proportional to 80,327.22, 110,864.61 and 76,783.74 is: 105,974.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,327.22 : 110,864.61 = 76,783.74 : x
  2. Step 2: Convert to fraction form
    80,327.22/110,864.61 = 76,783.74/x
  3. Step 3: Cross multiply
    80,327.22x = 110,864.61 × 76,783.74
  4. Step 4: Simplify right side
    80,327.22x = 8,512,599,389.44
  5. Step 5: Solve for x
    x = 8,512,599,389.44/80,327.22
  6. Step 6: Final answer
    x = 105,974.03

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1.5x scale

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.