Home / 77,540.09-107,045.96-52,179.80

Finding the Fourth Proportional to 77,540.09, 107,045.96 and 52,179.80

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Solution

The fourth proportional to 77,540.09, 107,045.96 and 52,179.80 is: 72,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,540.09 : 107,045.96 = 52,179.80 : x
  2. Step 2: Convert to fraction form
    77,540.09/107,045.96 = 52,179.80/x
  3. Step 3: Cross multiply
    77,540.09x = 107,045.96 × 52,179.80
  4. Step 4: Simplify right side
    77,540.09x = 5,585,635,987.48
  5. Step 5: Solve for x
    x = 5,585,635,987.48/77,540.09
  6. Step 6: Final answer
    x = 72,035.46

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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.