Home / 86,396.22-129,301.62-53,137.38

Finding the Fourth Proportional to 86,396.22, 129,301.62 and 53,137.38

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Solution

The fourth proportional to 86,396.22, 129,301.62 and 53,137.38 is: 79,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,396.22 : 129,301.62 = 53,137.38 : x
  2. Step 2: Convert to fraction form
    86,396.22/129,301.62 = 53,137.38/x
  3. Step 3: Cross multiply
    86,396.22x = 129,301.62 × 53,137.38
  4. Step 4: Simplify right side
    86,396.22x = 6,870,749,316.56
  5. Step 5: Solve for x
    x = 6,870,749,316.56/86,396.22
  6. Step 6: Final answer
    x = 79,526.04

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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.