Home / 73,058.10-109,368.45-68,732.70

Finding the Fourth Proportional to 73,058.10, 109,368.45 and 68,732.70

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Solution

The fourth proportional to 73,058.10, 109,368.45 and 68,732.70 is: 102,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,058.10 : 109,368.45 = 68,732.70 : x
  2. Step 2: Convert to fraction form
    73,058.10/109,368.45 = 68,732.70/x
  3. Step 3: Cross multiply
    73,058.10x = 109,368.45 × 68,732.70
  4. Step 4: Simplify right side
    73,058.10x = 7,517,188,863.32
  5. Step 5: Solve for x
    x = 7,517,188,863.32/73,058.10
  6. Step 6: Final answer
    x = 102,893.30

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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.