Home / 80,655.42-121,007.73-41,240.22

Finding the Fourth Proportional to 80,655.42, 121,007.73 and 41,240.22

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Solution

The fourth proportional to 80,655.42, 121,007.73 and 41,240.22 is: 61,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.42 : 121,007.73 = 41,240.22 : x
  2. Step 2: Convert to fraction form
    80,655.42/121,007.73 = 41,240.22/x
  3. Step 3: Cross multiply
    80,655.42x = 121,007.73 × 41,240.22
  4. Step 4: Simplify right side
    80,655.42x = 4,990,385,406.90
  5. Step 5: Solve for x
    x = 4,990,385,406.90/80,655.42
  6. Step 6: Final answer
    x = 61,872.91

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1.5x scale

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.