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Finding the Fourth Proportional to 45,424.60, 68,007.30 and 27,928.60

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Solution

The fourth proportional to 45,424.60, 68,007.30 and 27,928.60 is: 41,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,424.60 : 68,007.30 = 27,928.60 : x
  2. Step 2: Convert to fraction form
    45,424.60/68,007.30 = 27,928.60/x
  3. Step 3: Cross multiply
    45,424.60x = 68,007.30 × 27,928.60
  4. Step 4: Simplify right side
    45,424.60x = 1,899,348,678.78
  5. Step 5: Solve for x
    x = 1,899,348,678.78/45,424.60
  6. Step 6: Final answer
    x = 41,813.22

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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.