Home / 42,990.82-64,553.64-36,413.53

Finding the Fourth Proportional to 42,990.82, 64,553.64 and 36,413.53

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Solution

The fourth proportional to 42,990.82, 64,553.64 and 36,413.53 is: 54,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,990.82 : 64,553.64 = 36,413.53 : x
  2. Step 2: Convert to fraction form
    42,990.82/64,553.64 = 36,413.53/x
  3. Step 3: Cross multiply
    42,990.82x = 64,553.64 × 36,413.53
  4. Step 4: Simplify right side
    42,990.82x = 2,350,625,906.75
  5. Step 5: Solve for x
    x = 2,350,625,906.75/42,990.82
  6. Step 6: Final answer
    x = 54,677.39

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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.