Home / 57,072.98-85,621.14-19,628.18

Finding the Fourth Proportional to 57,072.98, 85,621.14 and 19,628.18

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Solution

The fourth proportional to 57,072.98, 85,621.14 and 19,628.18 is: 29,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,072.98 : 85,621.14 = 19,628.18 : x
  2. Step 2: Convert to fraction form
    57,072.98/85,621.14 = 19,628.18/x
  3. Step 3: Cross multiply
    57,072.98x = 85,621.14 × 19,628.18
  4. Step 4: Simplify right side
    57,072.98x = 1,680,586,719.62
  5. Step 5: Solve for x
    x = 1,680,586,719.62/57,072.98
  6. Step 6: Final answer
    x = 29,446.28

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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.