Home / 81,570.12-122,403.62-44,129.37

Finding the Fourth Proportional to 81,570.12, 122,403.62 and 44,129.37

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Solution

The fourth proportional to 81,570.12, 122,403.62 and 44,129.37 is: 66,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570.12 : 122,403.62 = 44,129.37 : x
  2. Step 2: Convert to fraction form
    81,570.12/122,403.62 = 44,129.37/x
  3. Step 3: Cross multiply
    81,570.12x = 122,403.62 × 44,129.37
  4. Step 4: Simplify right side
    81,570.12x = 5,401,594,415.67
  5. Step 5: Solve for x
    x = 5,401,594,415.67/81,570.12
  6. Step 6: Final answer
    x = 66,220.26

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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.