Home / 81,638.19-122,343.24-44,117.37

Finding the Fourth Proportional to 81,638.19, 122,343.24 and 44,117.37

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Solution

The fourth proportional to 81,638.19, 122,343.24 and 44,117.37 is: 66,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,638.19 : 122,343.24 = 44,117.37 : x
  2. Step 2: Convert to fraction form
    81,638.19/122,343.24 = 44,117.37/x
  3. Step 3: Cross multiply
    81,638.19x = 122,343.24 × 44,117.37
  4. Step 4: Simplify right side
    81,638.19x = 5,397,461,986.08
  5. Step 5: Solve for x
    x = 5,397,461,986.08/81,638.19
  6. Step 6: Final answer
    x = 66,114.42

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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.