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Finding the Fourth Proportional to 66,327.60, 99,357.89 and 30,738.90

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Solution

The fourth proportional to 66,327.60, 99,357.89 and 30,738.90 is: 46,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,327.60 : 99,357.89 = 30,738.90 : x
  2. Step 2: Convert to fraction form
    66,327.60/99,357.89 = 30,738.90/x
  3. Step 3: Cross multiply
    66,327.60x = 99,357.89 × 30,738.90
  4. Step 4: Simplify right side
    66,327.60x = 3,054,152,091.23
  5. Step 5: Solve for x
    x = 3,054,152,091.23/66,327.60
  6. Step 6: Final answer
    x = 46,046.47

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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.