Home / 73,161.05-100,960.12-40,895.72

Finding the Fourth Proportional to 73,161.05, 100,960.12 and 40,895.72

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Solution

The fourth proportional to 73,161.05, 100,960.12 and 40,895.72 is: 56,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.05 : 100,960.12 = 40,895.72 : x
  2. Step 2: Convert to fraction form
    73,161.05/100,960.12 = 40,895.72/x
  3. Step 3: Cross multiply
    73,161.05x = 100,960.12 × 40,895.72
  4. Step 4: Simplify right side
    73,161.05x = 4,128,836,723.61
  5. Step 5: Solve for x
    x = 4,128,836,723.61/73,161.05
  6. Step 6: Final answer
    x = 56,434.90

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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.