Home / 74,191.87-102,384.61-40,201.29

Finding the Fourth Proportional to 74,191.87, 102,384.61 and 40,201.29

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Solution

The fourth proportional to 74,191.87, 102,384.61 and 40,201.29 is: 55,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,191.87 : 102,384.61 = 40,201.29 : x
  2. Step 2: Convert to fraction form
    74,191.87/102,384.61 = 40,201.29/x
  3. Step 3: Cross multiply
    74,191.87x = 102,384.61 × 40,201.29
  4. Step 4: Simplify right side
    74,191.87x = 4,115,993,398.15
  5. Step 5: Solve for x
    x = 4,115,993,398.15/74,191.87
  6. Step 6: Final answer
    x = 55,477.69

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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.