Home / 81,570.64-122,342.22-22,392.60

Finding the Fourth Proportional to 81,570.64, 122,342.22 and 22,392.60

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Solution

The fourth proportional to 81,570.64, 122,342.22 and 22,392.60 is: 33,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570.64 : 122,342.22 = 22,392.60 : x
  2. Step 2: Convert to fraction form
    81,570.64/122,342.22 = 22,392.60/x
  3. Step 3: Cross multiply
    81,570.64x = 122,342.22 × 22,392.60
  4. Step 4: Simplify right side
    81,570.64x = 2,739,560,395.57
  5. Step 5: Solve for x
    x = 2,739,560,395.57/81,570.64
  6. Step 6: Final answer
    x = 33,585.13

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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.