Home / 77,939.54-107,531.19-47,693.30

Finding the Fourth Proportional to 77,939.54, 107,531.19 and 47,693.30

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Solution

The fourth proportional to 77,939.54, 107,531.19 and 47,693.30 is: 65,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,939.54 : 107,531.19 = 47,693.30 : x
  2. Step 2: Convert to fraction form
    77,939.54/107,531.19 = 47,693.30/x
  3. Step 3: Cross multiply
    77,939.54x = 107,531.19 × 47,693.30
  4. Step 4: Simplify right side
    77,939.54x = 5,128,517,304.03
  5. Step 5: Solve for x
    x = 5,128,517,304.03/77,939.54
  6. Step 6: Final answer
    x = 65,801.23

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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.