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Finding the Fourth Proportional to 45,621.60, 68,302.80 and 45,621.60

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Solution

The fourth proportional to 45,621.60, 68,302.80 and 45,621.60 is: 68,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,621.60 : 68,302.80 = 45,621.60 : x
  2. Step 2: Convert to fraction form
    45,621.60/68,302.80 = 45,621.60/x
  3. Step 3: Cross multiply
    45,621.60x = 68,302.80 × 45,621.60
  4. Step 4: Simplify right side
    45,621.60x = 3,116,083,020.48
  5. Step 5: Solve for x
    x = 3,116,083,020.48/45,621.60
  6. Step 6: Final answer
    x = 68,302.80

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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.