Home / 81,006.22-111,788.94-45,195.58

Finding the Fourth Proportional to 81,006.22, 111,788.94 and 45,195.58

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Solution

The fourth proportional to 81,006.22, 111,788.94 and 45,195.58 is: 62,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.22 : 111,788.94 = 45,195.58 : x
  2. Step 2: Convert to fraction form
    81,006.22/111,788.94 = 45,195.58/x
  3. Step 3: Cross multiply
    81,006.22x = 111,788.94 × 45,195.58
  4. Step 4: Simplify right side
    81,006.22x = 5,052,365,980.89
  5. Step 5: Solve for x
    x = 5,052,365,980.89/81,006.22
  6. Step 6: Final answer
    x = 62,370.10

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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.