Home / 66,320.23-99,413.81-30,806.48

Finding the Fourth Proportional to 66,320.23, 99,413.81 and 30,806.48

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Solution

The fourth proportional to 66,320.23, 99,413.81 and 30,806.48 is: 46,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,320.23 : 99,413.81 = 30,806.48 : x
  2. Step 2: Convert to fraction form
    66,320.23/99,413.81 = 30,806.48/x
  3. Step 3: Cross multiply
    66,320.23x = 99,413.81 × 30,806.48
  4. Step 4: Simplify right side
    66,320.23x = 3,062,589,549.49
  5. Step 5: Solve for x
    x = 3,062,589,549.49/66,320.23
  6. Step 6: Final answer
    x = 46,178.81

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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.