Home / 81,554.04-122,331-53,845.56

Finding the Fourth Proportional to 81,554.04, 122,331 and 53,845.56

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Solution

The fourth proportional to 81,554.04, 122,331 and 53,845.56 is: 80,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,554.04 : 122,331 = 53,845.56 : x
  2. Step 2: Convert to fraction form
    81,554.04/122,331 = 53,845.56/x
  3. Step 3: Cross multiply
    81,554.04x = 122,331 × 53,845.56
  4. Step 4: Simplify right side
    81,554.04x = 6,586,981,200.36
  5. Step 5: Solve for x
    x = 6,586,981,200.36/81,554.04
  6. Step 6: Final answer
    x = 80,768.30

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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.