Home / 65,727.36-90,691.20-40,584.96

Finding the Fourth Proportional to 65,727.36, 90,691.20 and 40,584.96

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Solution

The fourth proportional to 65,727.36, 90,691.20 and 40,584.96 is: 55,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,727.36 : 90,691.20 = 40,584.96 : x
  2. Step 2: Convert to fraction form
    65,727.36/90,691.20 = 40,584.96/x
  3. Step 3: Cross multiply
    65,727.36x = 90,691.20 × 40,584.96
  4. Step 4: Simplify right side
    65,727.36x = 3,680,698,724.35
  5. Step 5: Solve for x
    x = 3,680,698,724.35/65,727.36
  6. Step 6: Final answer
    x = 55,999.49

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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.