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Finding the Fourth Proportional to 52,464.80, 78,697.20 and 48,490.40

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Solution

The fourth proportional to 52,464.80, 78,697.20 and 48,490.40 is: 72,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,464.80 : 78,697.20 = 48,490.40 : x
  2. Step 2: Convert to fraction form
    52,464.80/78,697.20 = 48,490.40/x
  3. Step 3: Cross multiply
    52,464.80x = 78,697.20 × 48,490.40
  4. Step 4: Simplify right side
    52,464.80x = 3,816,058,706.88
  5. Step 5: Solve for x
    x = 3,816,058,706.88/52,464.80
  6. Step 6: Final answer
    x = 72,735.60

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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.