Home / 89,616.36-123,669.72-49,329.66

Finding the Fourth Proportional to 89,616.36, 123,669.72 and 49,329.66

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Solution

The fourth proportional to 89,616.36, 123,669.72 and 49,329.66 is: 68,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,616.36 : 123,669.72 = 49,329.66 : x
  2. Step 2: Convert to fraction form
    89,616.36/123,669.72 = 49,329.66/x
  3. Step 3: Cross multiply
    89,616.36x = 123,669.72 × 49,329.66
  4. Step 4: Simplify right side
    89,616.36x = 6,100,585,239.90
  5. Step 5: Solve for x
    x = 6,100,585,239.90/89,616.36
  6. Step 6: Final answer
    x = 68,074.46

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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.