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Finding the Fourth Proportional to 47,818, 71,735.55 and 19,722.43

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Solution

The fourth proportional to 47,818, 71,735.55 and 19,722.43 is: 29,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,818 : 71,735.55 = 19,722.43 : x
  2. Step 2: Convert to fraction form
    47,818/71,735.55 = 19,722.43/x
  3. Step 3: Cross multiply
    47,818x = 71,735.55 × 19,722.43
  4. Step 4: Simplify right side
    47,818x = 1,414,799,363.39
  5. Step 5: Solve for x
    x = 1,414,799,363.39/47,818
  6. Step 6: Final answer
    x = 29,587.17

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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.