Home / 72,034.36-99,413.04-40,208.03

Finding the Fourth Proportional to 72,034.36, 99,413.04 and 40,208.03

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Solution

The fourth proportional to 72,034.36, 99,413.04 and 40,208.03 is: 55,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,034.36 : 99,413.04 = 40,208.03 : x
  2. Step 2: Convert to fraction form
    72,034.36/99,413.04 = 40,208.03/x
  3. Step 3: Cross multiply
    72,034.36x = 99,413.04 × 40,208.03
  4. Step 4: Simplify right side
    72,034.36x = 3,997,202,494.71
  5. Step 5: Solve for x
    x = 3,997,202,494.71/72,034.36
  6. Step 6: Final answer
    x = 55,490.22

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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.