Home / 81,485.31-122,228.06-22,321.49

Finding the Fourth Proportional to 81,485.31, 122,228.06 and 22,321.49

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Solution

The fourth proportional to 81,485.31, 122,228.06 and 22,321.49 is: 33,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,485.31 : 122,228.06 = 22,321.49 : x
  2. Step 2: Convert to fraction form
    81,485.31/122,228.06 = 22,321.49/x
  3. Step 3: Cross multiply
    81,485.31x = 122,228.06 × 22,321.49
  4. Step 4: Simplify right side
    81,485.31x = 2,728,312,419.01
  5. Step 5: Solve for x
    x = 2,728,312,419.01/81,485.31
  6. Step 6: Final answer
    x = 33,482.26

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1.5x scale

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.