Home / 87,041.64-120,185.30-66,866.56

Finding the Fourth Proportional to 87,041.64, 120,185.30 and 66,866.56

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Solution

The fourth proportional to 87,041.64, 120,185.30 and 66,866.56 is: 92,327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,041.64 : 120,185.30 = 66,866.56 : x
  2. Step 2: Convert to fraction form
    87,041.64/120,185.30 = 66,866.56/x
  3. Step 3: Cross multiply
    87,041.64x = 120,185.30 × 66,866.56
  4. Step 4: Simplify right side
    87,041.64x = 8,036,377,573.57
  5. Step 5: Solve for x
    x = 8,036,377,573.57/87,041.64
  6. Step 6: Final answer
    x = 92,327.97

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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.