Home / 89,974.04-135,044.09-45,631.94

Finding the Fourth Proportional to 89,974.04, 135,044.09 and 45,631.94

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Solution

The fourth proportional to 89,974.04, 135,044.09 and 45,631.94 is: 68,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,974.04 : 135,044.09 = 45,631.94 : x
  2. Step 2: Convert to fraction form
    89,974.04/135,044.09 = 45,631.94/x
  3. Step 3: Cross multiply
    89,974.04x = 135,044.09 × 45,631.94
  4. Step 4: Simplify right side
    89,974.04x = 6,162,323,079.97
  5. Step 5: Solve for x
    x = 6,162,323,079.97/89,974.04
  6. Step 6: Final answer
    x = 68,490.02

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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.