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Finding the Fourth Proportional to 53,960.60, 80,940.90 and 14,521.70

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Solution

The fourth proportional to 53,960.60, 80,940.90 and 14,521.70 is: 21,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,960.60 : 80,940.90 = 14,521.70 : x
  2. Step 2: Convert to fraction form
    53,960.60/80,940.90 = 14,521.70/x
  3. Step 3: Cross multiply
    53,960.60x = 80,940.90 × 14,521.70
  4. Step 4: Simplify right side
    53,960.60x = 1,175,399,467.53
  5. Step 5: Solve for x
    x = 1,175,399,467.53/53,960.60
  6. Step 6: Final answer
    x = 21,782.55

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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.