Home / 67,120.32-92,489.46-51,920.64

Finding the Fourth Proportional to 67,120.32, 92,489.46 and 51,920.64

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Solution

The fourth proportional to 67,120.32, 92,489.46 and 51,920.64 is: 71,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,120.32 : 92,489.46 = 51,920.64 : x
  2. Step 2: Convert to fraction form
    67,120.32/92,489.46 = 51,920.64/x
  3. Step 3: Cross multiply
    67,120.32x = 92,489.46 × 51,920.64
  4. Step 4: Simplify right side
    67,120.32x = 4,802,111,956.45
  5. Step 5: Solve for x
    x = 4,802,111,956.45/67,120.32
  6. Step 6: Final answer
    x = 71,544.83

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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.