Home / 74,042.76-111,033.57-28,443.57

Finding the Fourth Proportional to 74,042.76, 111,033.57 and 28,443.57

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Solution

The fourth proportional to 74,042.76, 111,033.57 and 28,443.57 is: 42,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.76 : 111,033.57 = 28,443.57 : x
  2. Step 2: Convert to fraction form
    74,042.76/111,033.57 = 28,443.57/x
  3. Step 3: Cross multiply
    74,042.76x = 111,033.57 × 28,443.57
  4. Step 4: Simplify right side
    74,042.76x = 3,158,191,120.64
  5. Step 5: Solve for x
    x = 3,158,191,120.64/74,042.76
  6. Step 6: Final answer
    x = 42,653.61

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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.