Home / 87,267.42-120,420.30-49,031.37

Finding the Fourth Proportional to 87,267.42, 120,420.30 and 49,031.37

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Solution

The fourth proportional to 87,267.42, 120,420.30 and 49,031.37 is: 67,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,267.42 : 120,420.30 = 49,031.37 : x
  2. Step 2: Convert to fraction form
    87,267.42/120,420.30 = 49,031.37/x
  3. Step 3: Cross multiply
    87,267.42x = 120,420.30 × 49,031.37
  4. Step 4: Simplify right side
    87,267.42x = 5,904,372,468.68
  5. Step 5: Solve for x
    x = 5,904,372,468.68/87,267.42
  6. Step 6: Final answer
    x = 67,658.38

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1.5x scale

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.