Home / 87,564.22-131,322.40-31,393.89

Finding the Fourth Proportional to 87,564.22, 131,322.40 and 31,393.89

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Solution

The fourth proportional to 87,564.22, 131,322.40 and 31,393.89 is: 47,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,564.22 : 131,322.40 = 31,393.89 : x
  2. Step 2: Convert to fraction form
    87,564.22/131,322.40 = 31,393.89/x
  3. Step 3: Cross multiply
    87,564.22x = 131,322.40 × 31,393.89
  4. Step 4: Simplify right side
    87,564.22x = 4,122,720,980.14
  5. Step 5: Solve for x
    x = 4,122,720,980.14/87,564.22
  6. Step 6: Final answer
    x = 47,082.26

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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.