Home / 87,730.80-121,067.28-50,005.68

Finding the Fourth Proportional to 87,730.80, 121,067.28 and 50,005.68

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Solution

The fourth proportional to 87,730.80, 121,067.28 and 50,005.68 is: 69,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,730.80 : 121,067.28 = 50,005.68 : x
  2. Step 2: Convert to fraction form
    87,730.80/121,067.28 = 50,005.68/x
  3. Step 3: Cross multiply
    87,730.80x = 121,067.28 × 50,005.68
  4. Step 4: Simplify right side
    87,730.80x = 6,054,051,662.15
  5. Step 5: Solve for x
    x = 6,054,051,662.15/87,730.80
  6. Step 6: Final answer
    x = 69,007.14

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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.