Home / 87,931.36-121,342.64-50,198.24

Finding the Fourth Proportional to 87,931.36, 121,342.64 and 50,198.24

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Solution

The fourth proportional to 87,931.36, 121,342.64 and 50,198.24 is: 69,272.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,931.36 : 121,342.64 = 50,198.24 : x
  2. Step 2: Convert to fraction form
    87,931.36/121,342.64 = 50,198.24/x
  3. Step 3: Cross multiply
    87,931.36x = 121,342.64 × 50,198.24
  4. Step 4: Simplify right side
    87,931.36x = 6,091,186,964.95
  5. Step 5: Solve for x
    x = 6,091,186,964.95/87,931.36
  6. Step 6: Final answer
    x = 69,272.07

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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.