Home / 89,170.92-123,068.57-55,190.34

Finding the Fourth Proportional to 89,170.92, 123,068.57 and 55,190.34

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Solution

The fourth proportional to 89,170.92, 123,068.57 and 55,190.34 is: 76,170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,170.92 : 123,068.57 = 55,190.34 : x
  2. Step 2: Convert to fraction form
    89,170.92/123,068.57 = 55,190.34/x
  3. Step 3: Cross multiply
    89,170.92x = 123,068.57 × 55,190.34
  4. Step 4: Simplify right side
    89,170.92x = 6,792,195,945.66
  5. Step 5: Solve for x
    x = 6,792,195,945.66/89,170.92
  6. Step 6: Final answer
    x = 76,170.53

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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.