Home / 81,036.04-121,573.15-27,728.59

Finding the Fourth Proportional to 81,036.04, 121,573.15 and 27,728.59

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Solution

The fourth proportional to 81,036.04, 121,573.15 and 27,728.59 is: 41,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,036.04 : 121,573.15 = 27,728.59 : x
  2. Step 2: Convert to fraction form
    81,036.04/121,573.15 = 27,728.59/x
  3. Step 3: Cross multiply
    81,036.04x = 121,573.15 × 27,728.59
  4. Step 4: Simplify right side
    81,036.04x = 3,371,052,429.93
  5. Step 5: Solve for x
    x = 3,371,052,429.93/81,036.04
  6. Step 6: Final answer
    x = 41,599.42

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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.