Home / 67,145.81-100,739.16-41,828.45

Finding the Fourth Proportional to 67,145.81, 100,739.16 and 41,828.45

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Solution

The fourth proportional to 67,145.81, 100,739.16 and 41,828.45 is: 62,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.81 : 100,739.16 = 41,828.45 : x
  2. Step 2: Convert to fraction form
    67,145.81/100,739.16 = 41,828.45/x
  3. Step 3: Cross multiply
    67,145.81x = 100,739.16 × 41,828.45
  4. Step 4: Simplify right side
    67,145.81x = 4,213,762,413.41
  5. Step 5: Solve for x
    x = 4,213,762,413.41/67,145.81
  6. Step 6: Final answer
    x = 62,755.41

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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.