Home / 74,311.97-102,550.37-40,320.44

Finding the Fourth Proportional to 74,311.97, 102,550.37 and 40,320.44

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Solution

The fourth proportional to 74,311.97, 102,550.37 and 40,320.44 is: 55,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,311.97 : 102,550.37 = 40,320.44 : x
  2. Step 2: Convert to fraction form
    74,311.97/102,550.37 = 40,320.44/x
  3. Step 3: Cross multiply
    74,311.97x = 102,550.37 × 40,320.44
  4. Step 4: Simplify right side
    74,311.97x = 4,134,876,040.56
  5. Step 5: Solve for x
    x = 4,134,876,040.56/74,311.97
  6. Step 6: Final answer
    x = 55,642.13

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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.