Home / 74,716-103,107.42-40,724.48

Finding the Fourth Proportional to 74,716, 103,107.42 and 40,724.48

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Solution

The fourth proportional to 74,716, 103,107.42 and 40,724.48 is: 56,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716 : 103,107.42 = 40,724.48 : x
  2. Step 2: Convert to fraction form
    74,716/103,107.42 = 40,724.48/x
  3. Step 3: Cross multiply
    74,716x = 103,107.42 × 40,724.48
  4. Step 4: Simplify right side
    74,716x = 4,198,996,063.64
  5. Step 5: Solve for x
    x = 4,198,996,063.64/74,716
  6. Step 6: Final answer
    x = 56,199.42

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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.