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Finding the Fourth Proportional to 47,783.58, 65,722.14 and 38,331.42

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Solution

The fourth proportional to 47,783.58, 65,722.14 and 38,331.42 is: 52,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,783.58 : 65,722.14 = 38,331.42 : x
  2. Step 2: Convert to fraction form
    47,783.58/65,722.14 = 38,331.42/x
  3. Step 3: Cross multiply
    47,783.58x = 65,722.14 × 38,331.42
  4. Step 4: Simplify right side
    47,783.58x = 2,519,222,951.64
  5. Step 5: Solve for x
    x = 2,519,222,951.64/47,783.58
  6. Step 6: Final answer
    x = 52,721.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.