Home / 87,186.31-130,778.75-57,735.92

Finding the Fourth Proportional to 87,186.31, 130,778.75 and 57,735.92

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Solution

The fourth proportional to 87,186.31, 130,778.75 and 57,735.92 is: 86,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,186.31 : 130,778.75 = 57,735.92 : x
  2. Step 2: Convert to fraction form
    87,186.31/130,778.75 = 57,735.92/x
  3. Step 3: Cross multiply
    87,186.31x = 130,778.75 × 57,735.92
  4. Step 4: Simplify right side
    87,186.31x = 7,550,631,918.99
  5. Step 5: Solve for x
    x = 7,550,631,918.99/87,186.31
  6. Step 6: Final answer
    x = 86,603.41

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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.