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Finding the Fourth Proportional to 48,145.60, 72,072.60 and 36,384.40

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Solution

The fourth proportional to 48,145.60, 72,072.60 and 36,384.40 is: 54,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,145.60 : 72,072.60 = 36,384.40 : x
  2. Step 2: Convert to fraction form
    48,145.60/72,072.60 = 36,384.40/x
  3. Step 3: Cross multiply
    48,145.60x = 72,072.60 × 36,384.40
  4. Step 4: Simplify right side
    48,145.60x = 2,622,318,307.44
  5. Step 5: Solve for x
    x = 2,622,318,307.44/48,145.60
  6. Step 6: Final answer
    x = 54,466.42

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1.5x scale

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.