Home / 86,287.30-129,449.43-48,865.06

Finding the Fourth Proportional to 86,287.30, 129,449.43 and 48,865.06

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Solution

The fourth proportional to 86,287.30, 129,449.43 and 48,865.06 is: 73,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287.30 : 129,449.43 = 48,865.06 : x
  2. Step 2: Convert to fraction form
    86,287.30/129,449.43 = 48,865.06/x
  3. Step 3: Cross multiply
    86,287.30x = 129,449.43 × 48,865.06
  4. Step 4: Simplify right side
    86,287.30x = 6,325,554,163.92
  5. Step 5: Solve for x
    x = 6,325,554,163.92/86,287.30
  6. Step 6: Final answer
    x = 73,308.06

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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.