Home / 80,776.81-121,169.77-24,618.75

Finding the Fourth Proportional to 80,776.81, 121,169.77 and 24,618.75

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Solution

The fourth proportional to 80,776.81, 121,169.77 and 24,618.75 is: 36,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,776.81 : 121,169.77 = 24,618.75 : x
  2. Step 2: Convert to fraction form
    80,776.81/121,169.77 = 24,618.75/x
  3. Step 3: Cross multiply
    80,776.81x = 121,169.77 × 24,618.75
  4. Step 4: Simplify right side
    80,776.81x = 2,983,047,912.34
  5. Step 5: Solve for x
    x = 2,983,047,912.34/80,776.81
  6. Step 6: Final answer
    x = 36,929.51

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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.