Home / 57,021.90-85,534.62-19,581.48

Finding the Fourth Proportional to 57,021.90, 85,534.62 and 19,581.48

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Solution

The fourth proportional to 57,021.90, 85,534.62 and 19,581.48 is: 29,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.90 : 85,534.62 = 19,581.48 : x
  2. Step 2: Convert to fraction form
    57,021.90/85,534.62 = 19,581.48/x
  3. Step 3: Cross multiply
    57,021.90x = 85,534.62 × 19,581.48
  4. Step 4: Simplify right side
    57,021.90x = 1,674,894,450.84
  5. Step 5: Solve for x
    x = 1,674,894,450.84/57,021.90
  6. Step 6: Final answer
    x = 29,372.83

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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.