Home / 81,566.67-122,394.60-31,648.74

Finding the Fourth Proportional to 81,566.67, 122,394.60 and 31,648.74

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Solution

The fourth proportional to 81,566.67, 122,394.60 and 31,648.74 is: 47,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566.67 : 122,394.60 = 31,648.74 : x
  2. Step 2: Convert to fraction form
    81,566.67/122,394.60 = 31,648.74/x
  3. Step 3: Cross multiply
    81,566.67x = 122,394.60 × 31,648.74
  4. Step 4: Simplify right side
    81,566.67x = 3,873,634,413.82
  5. Step 5: Solve for x
    x = 3,873,634,413.82/81,566.67
  6. Step 6: Final answer
    x = 47,490.41

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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.