Home / 82,277.25-123,416.28-19,947.75

Finding the Fourth Proportional to 82,277.25, 123,416.28 and 19,947.75

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Solution

The fourth proportional to 82,277.25, 123,416.28 and 19,947.75 is: 29,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,277.25 : 123,416.28 = 19,947.75 : x
  2. Step 2: Convert to fraction form
    82,277.25/123,416.28 = 19,947.75/x
  3. Step 3: Cross multiply
    82,277.25x = 123,416.28 × 19,947.75
  4. Step 4: Simplify right side
    82,277.25x = 2,461,877,099.37
  5. Step 5: Solve for x
    x = 2,461,877,099.37/82,277.25
  6. Step 6: Final answer
    x = 29,921.72

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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.