Home / 87,487.23-131,232.87-31,331.19

Finding the Fourth Proportional to 87,487.23, 131,232.87 and 31,331.19

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Solution

The fourth proportional to 87,487.23, 131,232.87 and 31,331.19 is: 46,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487.23 : 131,232.87 = 31,331.19 : x
  2. Step 2: Convert to fraction form
    87,487.23/131,232.87 = 31,331.19/x
  3. Step 3: Cross multiply
    87,487.23x = 131,232.87 × 31,331.19
  4. Step 4: Simplify right side
    87,487.23x = 4,111,681,984.22
  5. Step 5: Solve for x
    x = 4,111,681,984.22/87,487.23
  6. Step 6: Final answer
    x = 46,997.51

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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.