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Finding the Fourth Proportional to 57,084.89, 85,635.54 and 17,645.08

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Solution

The fourth proportional to 57,084.89, 85,635.54 and 17,645.08 is: 26,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,084.89 : 85,635.54 = 17,645.08 : x
  2. Step 2: Convert to fraction form
    57,084.89/85,635.54 = 17,645.08/x
  3. Step 3: Cross multiply
    57,084.89x = 85,635.54 × 17,645.08
  4. Step 4: Simplify right side
    57,084.89x = 1,511,045,954.14
  5. Step 5: Solve for x
    x = 1,511,045,954.14/57,084.89
  6. Step 6: Final answer
    x = 26,470.16

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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.