Home / 54,413.09-81,532.15-45,665.09

Finding the Fourth Proportional to 54,413.09, 81,532.15 and 45,665.09

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Solution

The fourth proportional to 54,413.09, 81,532.15 and 45,665.09 is: 68,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,413.09 : 81,532.15 = 45,665.09 : x
  2. Step 2: Convert to fraction form
    54,413.09/81,532.15 = 45,665.09/x
  3. Step 3: Cross multiply
    54,413.09x = 81,532.15 × 45,665.09
  4. Step 4: Simplify right side
    54,413.09x = 3,723,172,967.64
  5. Step 5: Solve for x
    x = 3,723,172,967.64/54,413.09
  6. Step 6: Final answer
    x = 68,424.21

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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.