Home / 87,975.20-121,327.34-68,598.86

Finding the Fourth Proportional to 87,975.20, 121,327.34 and 68,598.86

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Solution

The fourth proportional to 87,975.20, 121,327.34 and 68,598.86 is: 94,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,975.20 : 121,327.34 = 68,598.86 : x
  2. Step 2: Convert to fraction form
    87,975.20/121,327.34 = 68,598.86/x
  3. Step 3: Cross multiply
    87,975.20x = 121,327.34 × 68,598.86
  4. Step 4: Simplify right side
    87,975.20x = 8,322,916,261.20
  5. Step 5: Solve for x
    x = 8,322,916,261.20/87,975.20
  6. Step 6: Final answer
    x = 94,605.25

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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.