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Finding the Fourth Proportional to 49,943.60, 74,904.60 and 21,863.60

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Solution

The fourth proportional to 49,943.60, 74,904.60 and 21,863.60 is: 32,790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,943.60 : 74,904.60 = 21,863.60 : x
  2. Step 2: Convert to fraction form
    49,943.60/74,904.60 = 21,863.60/x
  3. Step 3: Cross multiply
    49,943.60x = 74,904.60 × 21,863.60
  4. Step 4: Simplify right side
    49,943.60x = 1,637,684,212.56
  5. Step 5: Solve for x
    x = 1,637,684,212.56/49,943.60
  6. Step 6: Final answer
    x = 32,790.67

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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.