Home / 81,099.84-111,898.08-47,559.36

Finding the Fourth Proportional to 81,099.84, 111,898.08 and 47,559.36

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Solution

The fourth proportional to 81,099.84, 111,898.08 and 47,559.36 is: 65,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,099.84 : 111,898.08 = 47,559.36 : x
  2. Step 2: Convert to fraction form
    81,099.84/111,898.08 = 47,559.36/x
  3. Step 3: Cross multiply
    81,099.84x = 111,898.08 × 47,559.36
  4. Step 4: Simplify right side
    81,099.84x = 5,321,801,070.03
  5. Step 5: Solve for x
    x = 5,321,801,070.03/81,099.84
  6. Step 6: Final answer
    x = 65,620.36

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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.