Home / 89,128.26-122,991.66-48,834

Finding the Fourth Proportional to 89,128.26, 122,991.66 and 48,834

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Solution

The fourth proportional to 89,128.26, 122,991.66 and 48,834 is: 67,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128.26 : 122,991.66 = 48,834 : x
  2. Step 2: Convert to fraction form
    89,128.26/122,991.66 = 48,834/x
  3. Step 3: Cross multiply
    89,128.26x = 122,991.66 × 48,834
  4. Step 4: Simplify right side
    89,128.26x = 6,006,174,724.44
  5. Step 5: Solve for x
    x = 6,006,174,724.44/89,128.26
  6. Step 6: Final answer
    x = 67,387.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.