Home / 107,382.45-161,021.76-39,867.93

Finding the Fourth Proportional to 107,382.45, 161,021.76 and 39,867.93

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Solution

The fourth proportional to 107,382.45, 161,021.76 and 39,867.93 is: 59,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,382.45 : 161,021.76 = 39,867.93 : x
  2. Step 2: Convert to fraction form
    107,382.45/161,021.76 = 39,867.93/x
  3. Step 3: Cross multiply
    107,382.45x = 161,021.76 × 39,867.93
  4. Step 4: Simplify right side
    107,382.45x = 6,419,604,256.16
  5. Step 5: Solve for x
    x = 6,419,604,256.16/107,382.45
  6. Step 6: Final answer
    x = 59,782.62

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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.