Home / 87,457-131,207.64-25,127.50

Finding the Fourth Proportional to 87,457, 131,207.64 and 25,127.50

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Solution

The fourth proportional to 87,457, 131,207.64 and 25,127.50 is: 37,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457 : 131,207.64 = 25,127.50 : x
  2. Step 2: Convert to fraction form
    87,457/131,207.64 = 25,127.50/x
  3. Step 3: Cross multiply
    87,457x = 131,207.64 × 25,127.50
  4. Step 4: Simplify right side
    87,457x = 3,296,919,974.10
  5. Step 5: Solve for x
    x = 3,296,919,974.10/87,457
  6. Step 6: Final answer
    x = 37,697.61

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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.