Home / 81,504.10-122,242.14-21,533.22

Finding the Fourth Proportional to 81,504.10, 122,242.14 and 21,533.22

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Solution

The fourth proportional to 81,504.10, 122,242.14 and 21,533.22 is: 32,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,504.10 : 122,242.14 = 21,533.22 : x
  2. Step 2: Convert to fraction form
    81,504.10/122,242.14 = 21,533.22/x
  3. Step 3: Cross multiply
    81,504.10x = 122,242.14 × 21,533.22
  4. Step 4: Simplify right side
    81,504.10x = 2,632,266,489.52
  5. Step 5: Solve for x
    x = 2,632,266,489.52/81,504.10
  6. Step 6: Final answer
    x = 32,296.12

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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.