Home / 86,113.53-118,847.66-48,387.78

Finding the Fourth Proportional to 86,113.53, 118,847.66 and 48,387.78

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Solution

The fourth proportional to 86,113.53, 118,847.66 and 48,387.78 is: 66,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.53 : 118,847.66 = 48,387.78 : x
  2. Step 2: Convert to fraction form
    86,113.53/118,847.66 = 48,387.78/x
  3. Step 3: Cross multiply
    86,113.53x = 118,847.66 × 48,387.78
  4. Step 4: Simplify right side
    86,113.53x = 5,750,774,183.66
  5. Step 5: Solve for x
    x = 5,750,774,183.66/86,113.53
  6. Step 6: Final answer
    x = 66,781.31

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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.