Home / 81,083.72-121,594.56-38,952.08

Finding the Fourth Proportional to 81,083.72, 121,594.56 and 38,952.08

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Solution

The fourth proportional to 81,083.72, 121,594.56 and 38,952.08 is: 58,413.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.72 : 121,594.56 = 38,952.08 : x
  2. Step 2: Convert to fraction form
    81,083.72/121,594.56 = 38,952.08/x
  3. Step 3: Cross multiply
    81,083.72x = 121,594.56 × 38,952.08
  4. Step 4: Simplify right side
    81,083.72x = 4,736,361,028.68
  5. Step 5: Solve for x
    x = 4,736,361,028.68/81,083.72
  6. Step 6: Final answer
    x = 58,413.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.