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Finding the Fourth Proportional to 74,263.46, 102,474.36 and 47,421.68

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Solution

The fourth proportional to 74,263.46, 102,474.36 and 47,421.68 is: 65,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,263.46 : 102,474.36 = 47,421.68 : x
  2. Step 2: Convert to fraction form
    74,263.46/102,474.36 = 47,421.68/x
  3. Step 3: Cross multiply
    74,263.46x = 102,474.36 × 47,421.68
  4. Step 4: Simplify right side
    74,263.46x = 4,859,505,795.75
  5. Step 5: Solve for x
    x = 4,859,505,795.75/74,263.46
  6. Step 6: Final answer
    x = 65,436.03

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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.