Home / 87,529.58-120,791.32-49,803.84

Finding the Fourth Proportional to 87,529.58, 120,791.32 and 49,803.84

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Solution

The fourth proportional to 87,529.58, 120,791.32 and 49,803.84 is: 68,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,529.58 : 120,791.32 = 49,803.84 : x
  2. Step 2: Convert to fraction form
    87,529.58/120,791.32 = 49,803.84/x
  3. Step 3: Cross multiply
    87,529.58x = 120,791.32 × 49,803.84
  4. Step 4: Simplify right side
    87,529.58x = 6,015,871,574.67
  5. Step 5: Solve for x
    x = 6,015,871,574.67/87,529.58
  6. Step 6: Final answer
    x = 68,729.58

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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.