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Finding the Fourth Proportional to 44,178, 66,267 and 13,012.80

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Solution

The fourth proportional to 44,178, 66,267 and 13,012.80 is: 19,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,178 : 66,267 = 13,012.80 : x
  2. Step 2: Convert to fraction form
    44,178/66,267 = 13,012.80/x
  3. Step 3: Cross multiply
    44,178x = 66,267 × 13,012.80
  4. Step 4: Simplify right side
    44,178x = 862,319,217.60
  5. Step 5: Solve for x
    x = 862,319,217.60/44,178
  6. Step 6: Final answer
    x = 19,519.20

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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.