Home / 87,388.96-131,070.48-31,972

Finding the Fourth Proportional to 87,388.96, 131,070.48 and 31,972

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Solution

The fourth proportional to 87,388.96, 131,070.48 and 31,972 is: 47,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,388.96 : 131,070.48 = 31,972 : x
  2. Step 2: Convert to fraction form
    87,388.96/131,070.48 = 31,972/x
  3. Step 3: Cross multiply
    87,388.96x = 131,070.48 × 31,972
  4. Step 4: Simplify right side
    87,388.96x = 4,190,585,386.56
  5. Step 5: Solve for x
    x = 4,190,585,386.56/87,388.96
  6. Step 6: Final answer
    x = 47,953.26

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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.