Home / 90,610.17-135,822.24-31,413.48

Finding the Fourth Proportional to 90,610.17, 135,822.24 and 31,413.48

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Solution

The fourth proportional to 90,610.17, 135,822.24 and 31,413.48 is: 47,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,610.17 : 135,822.24 = 31,413.48 : x
  2. Step 2: Convert to fraction form
    90,610.17/135,822.24 = 31,413.48/x
  3. Step 3: Cross multiply
    90,610.17x = 135,822.24 × 31,413.48
  4. Step 4: Simplify right side
    90,610.17x = 4,266,649,219.80
  5. Step 5: Solve for x
    x = 4,266,649,219.80/90,610.17
  6. Step 6: Final answer
    x = 47,087.97

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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.