Home / 87,688.33-131,500.01-31,513.30

Finding the Fourth Proportional to 87,688.33, 131,500.01 and 31,513.30

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Solution

The fourth proportional to 87,688.33, 131,500.01 and 31,513.30 is: 47,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.33 : 131,500.01 = 31,513.30 : x
  2. Step 2: Convert to fraction form
    87,688.33/131,500.01 = 31,513.30/x
  3. Step 3: Cross multiply
    87,688.33x = 131,500.01 × 31,513.30
  4. Step 4: Simplify right side
    87,688.33x = 4,143,999,015.17
  5. Step 5: Solve for x
    x = 4,143,999,015.17/87,688.33
  6. Step 6: Final answer
    x = 47,258.27

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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.