Home / 77,665.09-107,176.62-43,673.61

Finding the Fourth Proportional to 77,665.09, 107,176.62 and 43,673.61

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Solution

The fourth proportional to 77,665.09, 107,176.62 and 43,673.61 is: 60,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,665.09 : 107,176.62 = 43,673.61 : x
  2. Step 2: Convert to fraction form
    77,665.09/107,176.62 = 43,673.61/x
  3. Step 3: Cross multiply
    77,665.09x = 107,176.62 × 43,673.61
  4. Step 4: Simplify right side
    77,665.09x = 4,680,789,903.00
  5. Step 5: Solve for x
    x = 4,680,789,903.00/77,665.09
  6. Step 6: Final answer
    x = 60,268.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.