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Finding the Fourth Proportional to 82,246.56, 123,370.56 and 19,917.12

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Solution

The fourth proportional to 82,246.56, 123,370.56 and 19,917.12 is: 29,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,246.56 : 123,370.56 = 19,917.12 : x
  2. Step 2: Convert to fraction form
    82,246.56/123,370.56 = 19,917.12/x
  3. Step 3: Cross multiply
    82,246.56x = 123,370.56 × 19,917.12
  4. Step 4: Simplify right side
    82,246.56x = 2,457,186,247.99
  5. Step 5: Solve for x
    x = 2,457,186,247.99/82,246.56
  6. Step 6: Final answer
    x = 29,875.85

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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.