Home / 60,205.09-90,311.97-20,761.64

Finding the Fourth Proportional to 60,205.09, 90,311.97 and 20,761.64

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Solution

The fourth proportional to 60,205.09, 90,311.97 and 20,761.64 is: 31,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,205.09 : 90,311.97 = 20,761.64 : x
  2. Step 2: Convert to fraction form
    60,205.09/90,311.97 = 20,761.64/x
  3. Step 3: Cross multiply
    60,205.09x = 90,311.97 × 20,761.64
  4. Step 4: Simplify right side
    60,205.09x = 1,875,024,608.83
  5. Step 5: Solve for x
    x = 1,875,024,608.83/60,205.09
  6. Step 6: Final answer
    x = 31,143.95

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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.