Home / 85,958.20-118,617.78-48,231.64

Finding the Fourth Proportional to 85,958.20, 118,617.78 and 48,231.64

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Solution

The fourth proportional to 85,958.20, 118,617.78 and 48,231.64 is: 66,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,958.20 : 118,617.78 = 48,231.64 : x
  2. Step 2: Convert to fraction form
    85,958.20/118,617.78 = 48,231.64/x
  3. Step 3: Cross multiply
    85,958.20x = 118,617.78 × 48,231.64
  4. Step 4: Simplify right side
    85,958.20x = 5,721,130,062.56
  5. Step 5: Solve for x
    x = 5,721,130,062.56/85,958.20
  6. Step 6: Final answer
    x = 66,557.12

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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.