Home / 86,221.20-118,986.24-48,495.12

Finding the Fourth Proportional to 86,221.20, 118,986.24 and 48,495.12

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Solution

The fourth proportional to 86,221.20, 118,986.24 and 48,495.12 is: 66,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221.20 : 118,986.24 = 48,495.12 : x
  2. Step 2: Convert to fraction form
    86,221.20/118,986.24 = 48,495.12/x
  3. Step 3: Cross multiply
    86,221.20x = 118,986.24 × 48,495.12
  4. Step 4: Simplify right side
    86,221.20x = 5,770,251,987.15
  5. Step 5: Solve for x
    x = 5,770,251,987.15/86,221.20
  6. Step 6: Final answer
    x = 66,923.82

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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.