Home / 55,845.75-77,067.14-30,695.25

Finding the Fourth Proportional to 55,845.75, 77,067.14 and 30,695.25

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Solution

The fourth proportional to 55,845.75, 77,067.14 and 30,695.25 is: 42,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,845.75 : 77,067.14 = 30,695.25 : x
  2. Step 2: Convert to fraction form
    55,845.75/77,067.14 = 30,695.25/x
  3. Step 3: Cross multiply
    55,845.75x = 77,067.14 × 30,695.25
  4. Step 4: Simplify right side
    55,845.75x = 2,365,594,975.61
  5. Step 5: Solve for x
    x = 2,365,594,975.61/55,845.75
  6. Step 6: Final answer
    x = 42,359.45

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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.