Home / 74,519.82-102,837.78-40,528.71

Finding the Fourth Proportional to 74,519.82, 102,837.78 and 40,528.71

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Solution

The fourth proportional to 74,519.82, 102,837.78 and 40,528.71 is: 55,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.82 : 102,837.78 = 40,528.71 : x
  2. Step 2: Convert to fraction form
    74,519.82/102,837.78 = 40,528.71/x
  3. Step 3: Cross multiply
    74,519.82x = 102,837.78 × 40,528.71
  4. Step 4: Simplify right side
    74,519.82x = 4,167,882,562.66
  5. Step 5: Solve for x
    x = 4,167,882,562.66/74,519.82
  6. Step 6: Final answer
    x = 55,929.85

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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.