Home / 87,971.60-131,986.36-58,505.36

Finding the Fourth Proportional to 87,971.60, 131,986.36 and 58,505.36

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Solution

The fourth proportional to 87,971.60, 131,986.36 and 58,505.36 is: 87,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.60 : 131,986.36 = 58,505.36 : x
  2. Step 2: Convert to fraction form
    87,971.60/131,986.36 = 58,505.36/x
  3. Step 3: Cross multiply
    87,971.60x = 131,986.36 × 58,505.36
  4. Step 4: Simplify right side
    87,971.60x = 7,721,909,506.89
  5. Step 5: Solve for x
    x = 7,721,909,506.89/87,971.60
  6. Step 6: Final answer
    x = 87,777.30

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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.