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Finding the Fourth Proportional to 67,085.56, 100,625.10 and 19,698.68

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Solution

The fourth proportional to 67,085.56, 100,625.10 and 19,698.68 is: 29,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,085.56 : 100,625.10 = 19,698.68 : x
  2. Step 2: Convert to fraction form
    67,085.56/100,625.10 = 19,698.68/x
  3. Step 3: Cross multiply
    67,085.56x = 100,625.10 × 19,698.68
  4. Step 4: Simplify right side
    67,085.56x = 1,982,181,644.87
  5. Step 5: Solve for x
    x = 1,982,181,644.87/67,085.56
  6. Step 6: Final answer
    x = 29,547.07

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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.