Home / 89,908.77-124,078.24-51,680.69

Finding the Fourth Proportional to 89,908.77, 124,078.24 and 51,680.69

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Solution

The fourth proportional to 89,908.77, 124,078.24 and 51,680.69 is: 71,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,908.77 : 124,078.24 = 51,680.69 : x
  2. Step 2: Convert to fraction form
    89,908.77/124,078.24 = 51,680.69/x
  3. Step 3: Cross multiply
    89,908.77x = 124,078.24 × 51,680.69
  4. Step 4: Simplify right side
    89,908.77x = 6,412,449,057.19
  5. Step 5: Solve for x
    x = 6,412,449,057.19/89,908.77
  6. Step 6: Final answer
    x = 71,321.73

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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.