Home / 87,503.36-120,754.38-49,777.60

Finding the Fourth Proportional to 87,503.36, 120,754.38 and 49,777.60

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Solution

The fourth proportional to 87,503.36, 120,754.38 and 49,777.60 is: 68,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,503.36 : 120,754.38 = 49,777.60 : x
  2. Step 2: Convert to fraction form
    87,503.36/120,754.38 = 49,777.60/x
  3. Step 3: Cross multiply
    87,503.36x = 120,754.38 × 49,777.60
  4. Step 4: Simplify right side
    87,503.36x = 6,010,863,225.89
  5. Step 5: Solve for x
    x = 6,010,863,225.89/87,503.36
  6. Step 6: Final answer
    x = 68,692.94

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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.