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Finding the Fourth Proportional to 54,860.69, 82,311.53 and 21,603.93

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Solution

The fourth proportional to 54,860.69, 82,311.53 and 21,603.93 is: 32,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,860.69 : 82,311.53 = 21,603.93 : x
  2. Step 2: Convert to fraction form
    54,860.69/82,311.53 = 21,603.93/x
  3. Step 3: Cross multiply
    54,860.69x = 82,311.53 × 21,603.93
  4. Step 4: Simplify right side
    54,860.69x = 1,778,252,532.31
  5. Step 5: Solve for x
    x = 1,778,252,532.31/54,860.69
  6. Step 6: Final answer
    x = 32,413.97

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1.5x scale

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.