Home / 81,816.10-122,759.69-44,402.60

Finding the Fourth Proportional to 81,816.10, 122,759.69 and 44,402.60

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Solution

The fourth proportional to 81,816.10, 122,759.69 and 44,402.60 is: 66,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816.10 : 122,759.69 = 44,402.60 : x
  2. Step 2: Convert to fraction form
    81,816.10/122,759.69 = 44,402.60/x
  3. Step 3: Cross multiply
    81,816.10x = 122,759.69 × 44,402.60
  4. Step 4: Simplify right side
    81,816.10x = 5,450,849,496.08
  5. Step 5: Solve for x
    x = 5,450,849,496.08/81,816.10
  6. Step 6: Final answer
    x = 66,623.19

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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.