Home / 74,414.84-102,694.32-40,423.31

Finding the Fourth Proportional to 74,414.84, 102,694.32 and 40,423.31

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Solution

The fourth proportional to 74,414.84, 102,694.32 and 40,423.31 is: 55,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,414.84 : 102,694.32 = 40,423.31 : x
  2. Step 2: Convert to fraction form
    74,414.84/102,694.32 = 40,423.31/x
  3. Step 3: Cross multiply
    74,414.84x = 102,694.32 × 40,423.31
  4. Step 4: Simplify right side
    74,414.84x = 4,151,244,690.39
  5. Step 5: Solve for x
    x = 4,151,244,690.39/74,414.84
  6. Step 6: Final answer
    x = 55,785.17

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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.