Home / 74,429.82-102,413.03-72,658.35

Finding the Fourth Proportional to 74,429.82, 102,413.03 and 72,658.35

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Solution

The fourth proportional to 74,429.82, 102,413.03 and 72,658.35 is: 99,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.82 : 102,413.03 = 72,658.35 : x
  2. Step 2: Convert to fraction form
    74,429.82/102,413.03 = 72,658.35/x
  3. Step 3: Cross multiply
    74,429.82x = 102,413.03 × 72,658.35
  4. Step 4: Simplify right side
    74,429.82x = 7,441,161,415.01
  5. Step 5: Solve for x
    x = 7,441,161,415.01/74,429.82
  6. Step 6: Final answer
    x = 99,975.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.