Home / 87,005.09-130,486.37-27,828.52

Finding the Fourth Proportional to 87,005.09, 130,486.37 and 27,828.52

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Solution

The fourth proportional to 87,005.09, 130,486.37 and 27,828.52 is: 41,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005.09 : 130,486.37 = 27,828.52 : x
  2. Step 2: Convert to fraction form
    87,005.09/130,486.37 = 27,828.52/x
  3. Step 3: Cross multiply
    87,005.09x = 130,486.37 × 27,828.52
  4. Step 4: Simplify right side
    87,005.09x = 3,631,242,091.91
  5. Step 5: Solve for x
    x = 3,631,242,091.91/87,005.09
  6. Step 6: Final answer
    x = 41,735.97

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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.