Home / 57,257.82-85,865.67-19,808.28

Finding the Fourth Proportional to 57,257.82, 85,865.67 and 19,808.28

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Solution

The fourth proportional to 57,257.82, 85,865.67 and 19,808.28 is: 29,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,257.82 : 85,865.67 = 19,808.28 : x
  2. Step 2: Convert to fraction form
    57,257.82/85,865.67 = 19,808.28/x
  3. Step 3: Cross multiply
    57,257.82x = 85,865.67 × 19,808.28
  4. Step 4: Simplify right side
    57,257.82x = 1,700,851,233.75
  5. Step 5: Solve for x
    x = 1,700,851,233.75/57,257.82
  6. Step 6: Final answer
    x = 29,705.13

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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.