Home / 81,005.22-111,787.56-45,194.58

Finding the Fourth Proportional to 81,005.22, 111,787.56 and 45,194.58

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Solution

The fourth proportional to 81,005.22, 111,787.56 and 45,194.58 is: 62,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005.22 : 111,787.56 = 45,194.58 : x
  2. Step 2: Convert to fraction form
    81,005.22/111,787.56 = 45,194.58/x
  3. Step 3: Cross multiply
    81,005.22x = 111,787.56 × 45,194.58
  4. Step 4: Simplify right side
    81,005.22x = 5,052,191,823.42
  5. Step 5: Solve for x
    x = 5,052,191,823.42/81,005.22
  6. Step 6: Final answer
    x = 62,368.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.