Home / 87,863.86-121,260.81-50,143.78

Finding the Fourth Proportional to 87,863.86, 121,260.81 and 50,143.78

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Solution

The fourth proportional to 87,863.86, 121,260.81 and 50,143.78 is: 69,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.86 : 121,260.81 = 50,143.78 : x
  2. Step 2: Convert to fraction form
    87,863.86/121,260.81 = 50,143.78/x
  3. Step 3: Cross multiply
    87,863.86x = 121,260.81 × 50,143.78
  4. Step 4: Simplify right side
    87,863.86x = 6,080,475,379.26
  5. Step 5: Solve for x
    x = 6,080,475,379.26/87,863.86
  6. Step 6: Final answer
    x = 69,203.37

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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.