Home / 80,578.08-111,231.85-54,389.74

Finding the Fourth Proportional to 80,578.08, 111,231.85 and 54,389.74

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Solution

The fourth proportional to 80,578.08, 111,231.85 and 54,389.74 is: 75,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,578.08 : 111,231.85 = 54,389.74 : x
  2. Step 2: Convert to fraction form
    80,578.08/111,231.85 = 54,389.74/x
  3. Step 3: Cross multiply
    80,578.08x = 111,231.85 × 54,389.74
  4. Step 4: Simplify right side
    80,578.08x = 6,049,871,224.67
  5. Step 5: Solve for x
    x = 6,049,871,224.67/80,578.08
  6. Step 6: Final answer
    x = 75,080.86

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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.