Home / 80,655.98-120,747.39-56,556.73

Finding the Fourth Proportional to 80,655.98, 120,747.39 and 56,556.73

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Solution

The fourth proportional to 80,655.98, 120,747.39 and 56,556.73 is: 84,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.98 : 120,747.39 = 56,556.73 : x
  2. Step 2: Convert to fraction form
    80,655.98/120,747.39 = 56,556.73/x
  3. Step 3: Cross multiply
    80,655.98x = 120,747.39 × 56,556.73
  4. Step 4: Simplify right side
    80,655.98x = 6,829,077,534.43
  5. Step 5: Solve for x
    x = 6,829,077,534.43/80,655.98
  6. Step 6: Final answer
    x = 84,669.20

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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.