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Finding the Fourth Proportional to 53,960.02, 80,890.72 and 18,880.54

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Solution

The fourth proportional to 53,960.02, 80,890.72 and 18,880.54 is: 28,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,960.02 : 80,890.72 = 18,880.54 : x
  2. Step 2: Convert to fraction form
    53,960.02/80,890.72 = 18,880.54/x
  3. Step 3: Cross multiply
    53,960.02x = 80,890.72 × 18,880.54
  4. Step 4: Simplify right side
    53,960.02x = 1,527,260,225.16
  5. Step 5: Solve for x
    x = 1,527,260,225.16/53,960.02
  6. Step 6: Final answer
    x = 28,303.55

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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.