Home / 81,596.16-122,413.68-31,677.48

Finding the Fourth Proportional to 81,596.16, 122,413.68 and 31,677.48

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Solution

The fourth proportional to 81,596.16, 122,413.68 and 31,677.48 is: 47,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,596.16 : 122,413.68 = 31,677.48 : x
  2. Step 2: Convert to fraction form
    81,596.16/122,413.68 = 31,677.48/x
  3. Step 3: Cross multiply
    81,596.16x = 122,413.68 × 31,677.48
  4. Step 4: Simplify right side
    81,596.16x = 3,877,756,899.93
  5. Step 5: Solve for x
    x = 3,877,756,899.93/81,596.16
  6. Step 6: Final answer
    x = 47,523.77

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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.