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Finding the Fourth Proportional to 44,400, 66,620.67 and 19,436.76

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Solution

The fourth proportional to 44,400, 66,620.67 and 19,436.76 is: 29,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,400 : 66,620.67 = 19,436.76 : x
  2. Step 2: Convert to fraction form
    44,400/66,620.67 = 19,436.76/x
  3. Step 3: Cross multiply
    44,400x = 66,620.67 × 19,436.76
  4. Step 4: Simplify right side
    44,400x = 1,294,889,973.83
  5. Step 5: Solve for x
    x = 1,294,889,973.83/44,400
  6. Step 6: Final answer
    x = 29,164.19

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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.