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Finding the Fourth Proportional to 45,409.43, 68,114.53 and 15,827.21

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Solution

The fourth proportional to 45,409.43, 68,114.53 and 15,827.21 is: 23,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,409.43 : 68,114.53 = 15,827.21 : x
  2. Step 2: Convert to fraction form
    45,409.43/68,114.53 = 15,827.21/x
  3. Step 3: Cross multiply
    45,409.43x = 68,114.53 × 15,827.21
  4. Step 4: Simplify right side
    45,409.43x = 1,078,063,101.08
  5. Step 5: Solve for x
    x = 1,078,063,101.08/45,409.43
  6. Step 6: Final answer
    x = 23,740.95

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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.