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Finding the Fourth Proportional to 53,640.66, 80,461.08 and 18,580.32

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Solution

The fourth proportional to 53,640.66, 80,461.08 and 18,580.32 is: 27,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,640.66 : 80,461.08 = 18,580.32 : x
  2. Step 2: Convert to fraction form
    53,640.66/80,461.08 = 18,580.32/x
  3. Step 3: Cross multiply
    53,640.66x = 80,461.08 × 18,580.32
  4. Step 4: Simplify right side
    53,640.66x = 1,494,992,613.95
  5. Step 5: Solve for x
    x = 1,494,992,613.95/53,640.66
  6. Step 6: Final answer
    x = 27,870.51

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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.