Home / 87,921.96-121,374.22-50,188.92

Finding the Fourth Proportional to 87,921.96, 121,374.22 and 50,188.92

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Solution

The fourth proportional to 87,921.96, 121,374.22 and 50,188.92 is: 69,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,921.96 : 121,374.22 = 50,188.92 : x
  2. Step 2: Convert to fraction form
    87,921.96/121,374.22 = 50,188.92/x
  3. Step 3: Cross multiply
    87,921.96x = 121,374.22 × 50,188.92
  4. Step 4: Simplify right side
    87,921.96x = 6,091,641,017.64
  5. Step 5: Solve for x
    x = 6,091,641,017.64/87,921.96
  6. Step 6: Final answer
    x = 69,284.64

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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.