Home / 66,336.20-91,473.80-51,231.32

Finding the Fourth Proportional to 66,336.20, 91,473.80 and 51,231.32

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Solution

The fourth proportional to 66,336.20, 91,473.80 and 51,231.32 is: 70,645.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,336.20 : 91,473.80 = 51,231.32 : x
  2. Step 2: Convert to fraction form
    66,336.20/91,473.80 = 51,231.32/x
  3. Step 3: Cross multiply
    66,336.20x = 91,473.80 × 51,231.32
  4. Step 4: Simplify right side
    66,336.20x = 4,686,323,519.42
  5. Step 5: Solve for x
    x = 4,686,323,519.42/66,336.20
  6. Step 6: Final answer
    x = 70,645.04

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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.