Home / 86,429.63-129,699.12-33,837.75

Finding the Fourth Proportional to 86,429.63, 129,699.12 and 33,837.75

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Solution

The fourth proportional to 86,429.63, 129,699.12 and 33,837.75 is: 50,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.63 : 129,699.12 = 33,837.75 : x
  2. Step 2: Convert to fraction form
    86,429.63/129,699.12 = 33,837.75/x
  3. Step 3: Cross multiply
    86,429.63x = 129,699.12 × 33,837.75
  4. Step 4: Simplify right side
    86,429.63x = 4,388,726,524.67
  5. Step 5: Solve for x
    x = 4,388,726,524.67/86,429.63
  6. Step 6: Final answer
    x = 50,778.03

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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.