Home / 80,313.13-120,471.63-27,005.80

Finding the Fourth Proportional to 80,313.13, 120,471.63 and 27,005.80

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Solution

The fourth proportional to 80,313.13, 120,471.63 and 27,005.80 is: 40,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,313.13 : 120,471.63 = 27,005.80 : x
  2. Step 2: Convert to fraction form
    80,313.13/120,471.63 = 27,005.80/x
  3. Step 3: Cross multiply
    80,313.13x = 120,471.63 × 27,005.80
  4. Step 4: Simplify right side
    80,313.13x = 3,253,432,745.45
  5. Step 5: Solve for x
    x = 3,253,432,745.45/80,313.13
  6. Step 6: Final answer
    x = 40,509.35

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1.5x scale

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.