Home / 87,692.42-120,986.86-53,665.44

Finding the Fourth Proportional to 87,692.42, 120,986.86 and 53,665.44

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Solution

The fourth proportional to 87,692.42, 120,986.86 and 53,665.44 is: 74,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,692.42 : 120,986.86 = 53,665.44 : x
  2. Step 2: Convert to fraction form
    87,692.42/120,986.86 = 53,665.44/x
  3. Step 3: Cross multiply
    87,692.42x = 120,986.86 × 53,665.44
  4. Step 4: Simplify right side
    87,692.42x = 6,492,813,076.12
  5. Step 5: Solve for x
    x = 6,492,813,076.12/87,692.42
  6. Step 6: Final answer
    x = 74,040.76

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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.