Home / 81,235.76-121,808.38-25,059.93

Finding the Fourth Proportional to 81,235.76, 121,808.38 and 25,059.93

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Solution

The fourth proportional to 81,235.76, 121,808.38 and 25,059.93 is: 37,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,235.76 : 121,808.38 = 25,059.93 : x
  2. Step 2: Convert to fraction form
    81,235.76/121,808.38 = 25,059.93/x
  3. Step 3: Cross multiply
    81,235.76x = 121,808.38 × 25,059.93
  4. Step 4: Simplify right side
    81,235.76x = 3,052,509,413.56
  5. Step 5: Solve for x
    x = 3,052,509,413.56/81,235.76
  6. Step 6: Final answer
    x = 37,575.93

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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.