Home / 74,694.65-103,078.62-40,703.14

Finding the Fourth Proportional to 74,694.65, 103,078.62 and 40,703.14

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Solution

The fourth proportional to 74,694.65, 103,078.62 and 40,703.14 is: 56,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,694.65 : 103,078.62 = 40,703.14 : x
  2. Step 2: Convert to fraction form
    74,694.65/103,078.62 = 40,703.14/x
  3. Step 3: Cross multiply
    74,694.65x = 103,078.62 × 40,703.14
  4. Step 4: Simplify right side
    74,694.65x = 4,195,623,500.87
  5. Step 5: Solve for x
    x = 4,195,623,500.87/74,694.65
  6. Step 6: Final answer
    x = 56,170.33

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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.