Home / 87,741.39-131,637.59-31,580.49

Finding the Fourth Proportional to 87,741.39, 131,637.59 and 31,580.49

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Solution

The fourth proportional to 87,741.39, 131,637.59 and 31,580.49 is: 47,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,741.39 : 131,637.59 = 31,580.49 : x
  2. Step 2: Convert to fraction form
    87,741.39/131,637.59 = 31,580.49/x
  3. Step 3: Cross multiply
    87,741.39x = 131,637.59 × 31,580.49
  4. Step 4: Simplify right side
    87,741.39x = 4,157,178,936.43
  5. Step 5: Solve for x
    x = 4,157,178,936.43/87,741.39
  6. Step 6: Final answer
    x = 47,379.91

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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.