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Finding the Fourth Proportional to 47,361.60, 71,042.40 and 19,713.60

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Solution

The fourth proportional to 47,361.60, 71,042.40 and 19,713.60 is: 29,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,361.60 : 71,042.40 = 19,713.60 : x
  2. Step 2: Convert to fraction form
    47,361.60/71,042.40 = 19,713.60/x
  3. Step 3: Cross multiply
    47,361.60x = 71,042.40 × 19,713.60
  4. Step 4: Simplify right side
    47,361.60x = 1,400,501,456.64
  5. Step 5: Solve for x
    x = 1,400,501,456.64/47,361.60
  6. Step 6: Final answer
    x = 29,570.40

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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.