Home / 87,135.12-130,692.30-23,961.66

Finding the Fourth Proportional to 87,135.12, 130,692.30 and 23,961.66

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Solution

The fourth proportional to 87,135.12, 130,692.30 and 23,961.66 is: 35,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,135.12 : 130,692.30 = 23,961.66 : x
  2. Step 2: Convert to fraction form
    87,135.12/130,692.30 = 23,961.66/x
  3. Step 3: Cross multiply
    87,135.12x = 130,692.30 × 23,961.66
  4. Step 4: Simplify right side
    87,135.12x = 3,131,604,457.22
  5. Step 5: Solve for x
    x = 3,131,604,457.22/87,135.12
  6. Step 6: Final answer
    x = 35,939.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.