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Finding the Fourth Proportional to 61,694, 85,099.44 and 45,544.80

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Solution

The fourth proportional to 61,694, 85,099.44 and 45,544.80 is: 62,823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,694 : 85,099.44 = 45,544.80 : x
  2. Step 2: Convert to fraction form
    61,694/85,099.44 = 45,544.80/x
  3. Step 3: Cross multiply
    61,694x = 85,099.44 × 45,544.80
  4. Step 4: Simplify right side
    61,694x = 3,875,836,974.91
  5. Step 5: Solve for x
    x = 3,875,836,974.91/61,694
  6. Step 6: Final answer
    x = 62,823.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.