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Finding the Fourth Proportional to 68,805.60, 103,208.40 and 37,701.60

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Solution

The fourth proportional to 68,805.60, 103,208.40 and 37,701.60 is: 56,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,805.60 : 103,208.40 = 37,701.60 : x
  2. Step 2: Convert to fraction form
    68,805.60/103,208.40 = 37,701.60/x
  3. Step 3: Cross multiply
    68,805.60x = 103,208.40 × 37,701.60
  4. Step 4: Simplify right side
    68,805.60x = 3,891,121,813.44
  5. Step 5: Solve for x
    x = 3,891,121,813.44/68,805.60
  6. Step 6: Final answer
    x = 56,552.40

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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.