Home / 87,520.50-120,771.10-49,267.83

Finding the Fourth Proportional to 87,520.50, 120,771.10 and 49,267.83

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Solution

The fourth proportional to 87,520.50, 120,771.10 and 49,267.83 is: 67,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,520.50 : 120,771.10 = 49,267.83 : x
  2. Step 2: Convert to fraction form
    87,520.50/120,771.10 = 49,267.83/x
  3. Step 3: Cross multiply
    87,520.50x = 120,771.10 × 49,267.83
  4. Step 4: Simplify right side
    87,520.50x = 5,950,129,858.85
  5. Step 5: Solve for x
    x = 5,950,129,858.85/87,520.50
  6. Step 6: Final answer
    x = 67,985.56

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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.