Home / 74,508.66-111,836.43-54,731.70

Finding the Fourth Proportional to 74,508.66, 111,836.43 and 54,731.70

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Solution

The fourth proportional to 74,508.66, 111,836.43 and 54,731.70 is: 82,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.66 : 111,836.43 = 54,731.70 : x
  2. Step 2: Convert to fraction form
    74,508.66/111,836.43 = 54,731.70/x
  3. Step 3: Cross multiply
    74,508.66x = 111,836.43 × 54,731.70
  4. Step 4: Simplify right side
    74,508.66x = 6,120,997,935.83
  5. Step 5: Solve for x
    x = 6,120,997,935.83/74,508.66
  6. Step 6: Final answer
    x = 82,151.50

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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.