Home / 81,589.54-122,356.59-28,269.07

Finding the Fourth Proportional to 81,589.54, 122,356.59 and 28,269.07

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Solution

The fourth proportional to 81,589.54, 122,356.59 and 28,269.07 is: 42,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,589.54 : 122,356.59 = 28,269.07 : x
  2. Step 2: Convert to fraction form
    81,589.54/122,356.59 = 28,269.07/x
  3. Step 3: Cross multiply
    81,589.54x = 122,356.59 × 28,269.07
  4. Step 4: Simplify right side
    81,589.54x = 3,458,907,160.62
  5. Step 5: Solve for x
    x = 3,458,907,160.62/81,589.54
  6. Step 6: Final answer
    x = 42,394.00

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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.