Home / 87,904.08-121,277.52-49,659.12

Finding the Fourth Proportional to 87,904.08, 121,277.52 and 49,659.12

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Solution

The fourth proportional to 87,904.08, 121,277.52 and 49,659.12 is: 68,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.08 : 121,277.52 = 49,659.12 : x
  2. Step 2: Convert to fraction form
    87,904.08/121,277.52 = 49,659.12/x
  3. Step 3: Cross multiply
    87,904.08x = 121,277.52 × 49,659.12
  4. Step 4: Simplify right side
    87,904.08x = 6,022,534,918.98
  5. Step 5: Solve for x
    x = 6,022,534,918.98/87,904.08
  6. Step 6: Final answer
    x = 68,512.58

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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.