Home / 86,724.64-130,105.32-30,562.48

Finding the Fourth Proportional to 86,724.64, 130,105.32 and 30,562.48

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Solution

The fourth proportional to 86,724.64, 130,105.32 and 30,562.48 is: 45,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,724.64 : 130,105.32 = 30,562.48 : x
  2. Step 2: Convert to fraction form
    86,724.64/130,105.32 = 30,562.48/x
  3. Step 3: Cross multiply
    86,724.64x = 130,105.32 × 30,562.48
  4. Step 4: Simplify right side
    86,724.64x = 3,976,341,240.39
  5. Step 5: Solve for x
    x = 3,976,341,240.39/86,724.64
  6. Step 6: Final answer
    x = 45,850.19

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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.