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Finding the Fourth Proportional to 68,360.48, 102,541.36 and 21,613.60

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Solution

The fourth proportional to 68,360.48, 102,541.36 and 21,613.60 is: 32,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,360.48 : 102,541.36 = 21,613.60 : x
  2. Step 2: Convert to fraction form
    68,360.48/102,541.36 = 21,613.60/x
  3. Step 3: Cross multiply
    68,360.48x = 102,541.36 × 21,613.60
  4. Step 4: Simplify right side
    68,360.48x = 2,216,287,938.50
  5. Step 5: Solve for x
    x = 2,216,287,938.50/68,360.48
  6. Step 6: Final answer
    x = 32,420.60

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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.