Home / 81,921.07-122,929.37-34,533.26

Finding the Fourth Proportional to 81,921.07, 122,929.37 and 34,533.26

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Solution

The fourth proportional to 81,921.07, 122,929.37 and 34,533.26 is: 51,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,921.07 : 122,929.37 = 34,533.26 : x
  2. Step 2: Convert to fraction form
    81,921.07/122,929.37 = 34,533.26/x
  3. Step 3: Cross multiply
    81,921.07x = 122,929.37 × 34,533.26
  4. Step 4: Simplify right side
    81,921.07x = 4,245,151,895.85
  5. Step 5: Solve for x
    x = 4,245,151,895.85/81,921.07
  6. Step 6: Final answer
    x = 51,820.03

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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.