Home / 86,942.51-130,409.49-50,939.38

Finding the Fourth Proportional to 86,942.51, 130,409.49 and 50,939.38

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Solution

The fourth proportional to 86,942.51, 130,409.49 and 50,939.38 is: 76,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,942.51 : 130,409.49 = 50,939.38 : x
  2. Step 2: Convert to fraction form
    86,942.51/130,409.49 = 50,939.38/x
  3. Step 3: Cross multiply
    86,942.51x = 130,409.49 × 50,939.38
  4. Step 4: Simplify right side
    86,942.51x = 6,642,978,920.75
  5. Step 5: Solve for x
    x = 6,642,978,920.75/86,942.51
  6. Step 6: Final answer
    x = 76,406.57

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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.