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Finding the Fourth Proportional to 68,443.60, 102,550.20 and 33,307.60

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Solution

The fourth proportional to 68,443.60, 102,550.20 and 33,307.60 is: 49,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,443.60 : 102,550.20 = 33,307.60 : x
  2. Step 2: Convert to fraction form
    68,443.60/102,550.20 = 33,307.60/x
  3. Step 3: Cross multiply
    68,443.60x = 102,550.20 × 33,307.60
  4. Step 4: Simplify right side
    68,443.60x = 3,415,701,041.52
  5. Step 5: Solve for x
    x = 3,415,701,041.52/68,443.60
  6. Step 6: Final answer
    x = 49,905.34

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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.