Home / 87,640.48-131,362.02-43,173.04

Finding the Fourth Proportional to 87,640.48, 131,362.02 and 43,173.04

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Solution

The fourth proportional to 87,640.48, 131,362.02 and 43,173.04 is: 64,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,640.48 : 131,362.02 = 43,173.04 : x
  2. Step 2: Convert to fraction form
    87,640.48/131,362.02 = 43,173.04/x
  3. Step 3: Cross multiply
    87,640.48x = 131,362.02 × 43,173.04
  4. Step 4: Simplify right side
    87,640.48x = 5,671,297,743.94
  5. Step 5: Solve for x
    x = 5,671,297,743.94/87,640.48
  6. Step 6: Final answer
    x = 64,710.94

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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.