Home / 87,455.54-120,697.82-51,648.87

Finding the Fourth Proportional to 87,455.54, 120,697.82 and 51,648.87

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Solution

The fourth proportional to 87,455.54, 120,697.82 and 51,648.87 is: 71,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,455.54 : 120,697.82 = 51,648.87 : x
  2. Step 2: Convert to fraction form
    87,455.54/120,697.82 = 51,648.87/x
  3. Step 3: Cross multiply
    87,455.54x = 120,697.82 × 51,648.87
  4. Step 4: Simplify right side
    87,455.54x = 6,233,905,756.22
  5. Step 5: Solve for x
    x = 6,233,905,756.22/87,455.54
  6. Step 6: Final answer
    x = 71,280.86

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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.