Home / 87,765.44-121,114.08-51,956

Finding the Fourth Proportional to 87,765.44, 121,114.08 and 51,956

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Solution

The fourth proportional to 87,765.44, 121,114.08 and 51,956 is: 71,697.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,765.44 : 121,114.08 = 51,956 : x
  2. Step 2: Convert to fraction form
    87,765.44/121,114.08 = 51,956/x
  3. Step 3: Cross multiply
    87,765.44x = 121,114.08 × 51,956
  4. Step 4: Simplify right side
    87,765.44x = 6,292,603,140.48
  5. Step 5: Solve for x
    x = 6,292,603,140.48/87,765.44
  6. Step 6: Final answer
    x = 71,697.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.