Home / 89,400.36-123,372.36-49,115.16

Finding the Fourth Proportional to 89,400.36, 123,372.36 and 49,115.16

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Solution

The fourth proportional to 89,400.36, 123,372.36 and 49,115.16 is: 67,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,400.36 : 123,372.36 = 49,115.16 : x
  2. Step 2: Convert to fraction form
    89,400.36/123,372.36 = 49,115.16/x
  3. Step 3: Cross multiply
    89,400.36x = 123,372.36 × 49,115.16
  4. Step 4: Simplify right side
    89,400.36x = 6,059,453,200.98
  5. Step 5: Solve for x
    x = 6,059,453,200.98/89,400.36
  6. Step 6: Final answer
    x = 67,778.85

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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.