Home / 77,945.18-107,539.83-47,698.97

Finding the Fourth Proportional to 77,945.18, 107,539.83 and 47,698.97

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Solution

The fourth proportional to 77,945.18, 107,539.83 and 47,698.97 is: 65,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.18 : 107,539.83 = 47,698.97 : x
  2. Step 2: Convert to fraction form
    77,945.18/107,539.83 = 47,698.97/x
  3. Step 3: Cross multiply
    77,945.18x = 107,539.83 × 47,698.97
  4. Step 4: Simplify right side
    77,945.18x = 5,129,538,587.28
  5. Step 5: Solve for x
    x = 5,129,538,587.28/77,945.18
  6. Step 6: Final answer
    x = 65,809.57

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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.