Home / 75,331.20-103,960.32-45,110.79

Finding the Fourth Proportional to 75,331.20, 103,960.32 and 45,110.79

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Solution

The fourth proportional to 75,331.20, 103,960.32 and 45,110.79 is: 62,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,331.20 : 103,960.32 = 45,110.79 : x
  2. Step 2: Convert to fraction form
    75,331.20/103,960.32 = 45,110.79/x
  3. Step 3: Cross multiply
    75,331.20x = 103,960.32 × 45,110.79
  4. Step 4: Simplify right side
    75,331.20x = 4,689,732,163.85
  5. Step 5: Solve for x
    x = 4,689,732,163.85/75,331.20
  6. Step 6: Final answer
    x = 62,254.84

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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.