Home / 74,775.94-112,185.09-30,434.51

Finding the Fourth Proportional to 74,775.94, 112,185.09 and 30,434.51

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Solution

The fourth proportional to 74,775.94, 112,185.09 and 30,434.51 is: 45,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.94 : 112,185.09 = 30,434.51 : x
  2. Step 2: Convert to fraction form
    74,775.94/112,185.09 = 30,434.51/x
  3. Step 3: Cross multiply
    74,775.94x = 112,185.09 × 30,434.51
  4. Step 4: Simplify right side
    74,775.94x = 3,414,298,523.92
  5. Step 5: Solve for x
    x = 3,414,298,523.92/74,775.94
  6. Step 6: Final answer
    x = 45,660.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.