Home / 86,781.44-130,183.81-30,608.35

Finding the Fourth Proportional to 86,781.44, 130,183.81 and 30,608.35

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Solution

The fourth proportional to 86,781.44, 130,183.81 and 30,608.35 is: 45,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,781.44 : 130,183.81 = 30,608.35 : x
  2. Step 2: Convert to fraction form
    86,781.44/130,183.81 = 30,608.35/x
  3. Step 3: Cross multiply
    86,781.44x = 130,183.81 × 30,608.35
  4. Step 4: Simplify right side
    86,781.44x = 3,984,711,218.83
  5. Step 5: Solve for x
    x = 3,984,711,218.83/86,781.44
  6. Step 6: Final answer
    x = 45,916.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.