Home / 74,759.86-112,111.84-30,371.66

Finding the Fourth Proportional to 74,759.86, 112,111.84 and 30,371.66

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Solution

The fourth proportional to 74,759.86, 112,111.84 and 30,371.66 is: 45,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.86 : 112,111.84 = 30,371.66 : x
  2. Step 2: Convert to fraction form
    74,759.86/112,111.84 = 30,371.66/x
  3. Step 3: Cross multiply
    74,759.86x = 112,111.84 × 30,371.66
  4. Step 4: Simplify right side
    74,759.86x = 3,405,021,974.04
  5. Step 5: Solve for x
    x = 3,405,021,974.04/74,759.86
  6. Step 6: Final answer
    x = 45,546.13

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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.