Home / 71,905.12-107,784.68-34,410.22

Finding the Fourth Proportional to 71,905.12, 107,784.68 and 34,410.22

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Solution

The fourth proportional to 71,905.12, 107,784.68 and 34,410.22 is: 51,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,905.12 : 107,784.68 = 34,410.22 : x
  2. Step 2: Convert to fraction form
    71,905.12/107,784.68 = 34,410.22/x
  3. Step 3: Cross multiply
    71,905.12x = 107,784.68 × 34,410.22
  4. Step 4: Simplify right side
    71,905.12x = 3,708,894,109.92
  5. Step 5: Solve for x
    x = 3,708,894,109.92/71,905.12
  6. Step 6: Final answer
    x = 51,580.39

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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.