Home / 74,950.38-112,422.87-18,790.95

Finding the Fourth Proportional to 74,950.38, 112,422.87 and 18,790.95

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Solution

The fourth proportional to 74,950.38, 112,422.87 and 18,790.95 is: 28,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,950.38 : 112,422.87 = 18,790.95 : x
  2. Step 2: Convert to fraction form
    74,950.38/112,422.87 = 18,790.95/x
  3. Step 3: Cross multiply
    74,950.38x = 112,422.87 × 18,790.95
  4. Step 4: Simplify right side
    74,950.38x = 2,112,532,529.03
  5. Step 5: Solve for x
    x = 2,112,532,529.03/74,950.38
  6. Step 6: Final answer
    x = 28,185.75

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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.