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Finding the Fourth Proportional to 49,657.20, 74,485.80 and 14,600.40

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Solution

The fourth proportional to 49,657.20, 74,485.80 and 14,600.40 is: 21,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,657.20 : 74,485.80 = 14,600.40 : x
  2. Step 2: Convert to fraction form
    49,657.20/74,485.80 = 14,600.40/x
  3. Step 3: Cross multiply
    49,657.20x = 74,485.80 × 14,600.40
  4. Step 4: Simplify right side
    49,657.20x = 1,087,522,474.32
  5. Step 5: Solve for x
    x = 1,087,522,474.32/49,657.20
  6. Step 6: Final answer
    x = 21,900.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.