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Finding the Fourth Proportional to 82,248.75, 123,373.53 and 19,919.25

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Solution

The fourth proportional to 82,248.75, 123,373.53 and 19,919.25 is: 29,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,248.75 : 123,373.53 = 19,919.25 : x
  2. Step 2: Convert to fraction form
    82,248.75/123,373.53 = 19,919.25/x
  3. Step 3: Cross multiply
    82,248.75x = 123,373.53 × 19,919.25
  4. Step 4: Simplify right side
    82,248.75x = 2,457,508,187.45
  5. Step 5: Solve for x
    x = 2,457,508,187.45/82,248.75
  6. Step 6: Final answer
    x = 29,878.97

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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.