Home / 76,889.09-115,320.33-34,759.37

Finding the Fourth Proportional to 76,889.09, 115,320.33 and 34,759.37

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Solution

The fourth proportional to 76,889.09, 115,320.33 and 34,759.37 is: 52,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.09 : 115,320.33 = 34,759.37 : x
  2. Step 2: Convert to fraction form
    76,889.09/115,320.33 = 34,759.37/x
  3. Step 3: Cross multiply
    76,889.09x = 115,320.33 × 34,759.37
  4. Step 4: Simplify right side
    76,889.09x = 4,008,462,329.53
  5. Step 5: Solve for x
    x = 4,008,462,329.53/76,889.09
  6. Step 6: Final answer
    x = 52,133.05

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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.