Home / 87,873.78-121,267.89-50,151.54

Finding the Fourth Proportional to 87,873.78, 121,267.89 and 50,151.54

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Solution

The fourth proportional to 87,873.78, 121,267.89 and 50,151.54 is: 69,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,873.78 : 121,267.89 = 50,151.54 : x
  2. Step 2: Convert to fraction form
    87,873.78/121,267.89 = 50,151.54/x
  3. Step 3: Cross multiply
    87,873.78x = 121,267.89 × 50,151.54
  4. Step 4: Simplify right side
    87,873.78x = 6,081,771,436.05
  5. Step 5: Solve for x
    x = 6,081,771,436.05/87,873.78
  6. Step 6: Final answer
    x = 69,210.31

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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.