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Finding the Fourth Proportional to 53,956, 80,948.40 and 17,020

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Solution

The fourth proportional to 53,956, 80,948.40 and 17,020 is: 25,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,956 : 80,948.40 = 17,020 : x
  2. Step 2: Convert to fraction form
    53,956/80,948.40 = 17,020/x
  3. Step 3: Cross multiply
    53,956x = 80,948.40 × 17,020
  4. Step 4: Simplify right side
    53,956x = 1,377,741,768
  5. Step 5: Solve for x
    x = 1,377,741,768/53,956
  6. Step 6: Final answer
    x = 25,534.54

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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.