Home / 86,317.26-129,451.32-43,642.14

Finding the Fourth Proportional to 86,317.26, 129,451.32 and 43,642.14

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Solution

The fourth proportional to 86,317.26, 129,451.32 and 43,642.14 is: 65,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317.26 : 129,451.32 = 43,642.14 : x
  2. Step 2: Convert to fraction form
    86,317.26/129,451.32 = 43,642.14/x
  3. Step 3: Cross multiply
    86,317.26x = 129,451.32 × 43,642.14
  4. Step 4: Simplify right side
    86,317.26x = 5,649,532,630.62
  5. Step 5: Solve for x
    x = 5,649,532,630.62/86,317.26
  6. Step 6: Final answer
    x = 65,450.79

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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.