Home / 89,218.80-123,121.68-50,990.19

Finding the Fourth Proportional to 89,218.80, 123,121.68 and 50,990.19

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Solution

The fourth proportional to 89,218.80, 123,121.68 and 50,990.19 is: 70,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.80 : 123,121.68 = 50,990.19 : x
  2. Step 2: Convert to fraction form
    89,218.80/123,121.68 = 50,990.19/x
  3. Step 3: Cross multiply
    89,218.80x = 123,121.68 × 50,990.19
  4. Step 4: Simplify right side
    89,218.80x = 6,277,997,856.32
  5. Step 5: Solve for x
    x = 6,277,997,856.32/89,218.80
  6. Step 6: Final answer
    x = 70,366.31

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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.