Home / 45,919.14-68,905.32-19,262.76

Finding the Fourth Proportional to 45,919.14, 68,905.32 and 19,262.76

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Solution

The fourth proportional to 45,919.14, 68,905.32 and 19,262.76 is: 28,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.14 : 68,905.32 = 19,262.76 : x
  2. Step 2: Convert to fraction form
    45,919.14/68,905.32 = 19,262.76/x
  3. Step 3: Cross multiply
    45,919.14x = 68,905.32 × 19,262.76
  4. Step 4: Simplify right side
    45,919.14x = 1,327,306,641.88
  5. Step 5: Solve for x
    x = 1,327,306,641.88/45,919.14
  6. Step 6: Final answer
    x = 28,905.30

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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.