Home / 72,413.22-99,936.16-40,157.94

Finding the Fourth Proportional to 72,413.22, 99,936.16 and 40,157.94

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Solution

The fourth proportional to 72,413.22, 99,936.16 and 40,157.94 is: 55,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,413.22 : 99,936.16 = 40,157.94 : x
  2. Step 2: Convert to fraction form
    72,413.22/99,936.16 = 40,157.94/x
  3. Step 3: Cross multiply
    72,413.22x = 99,936.16 × 40,157.94
  4. Step 4: Simplify right side
    72,413.22x = 4,013,230,542.43
  5. Step 5: Solve for x
    x = 4,013,230,542.43/72,413.22
  6. Step 6: Final answer
    x = 55,421.24

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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.