Home / 57,108.85-85,669.01-19,663.96

Finding the Fourth Proportional to 57,108.85, 85,669.01 and 19,663.96

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Solution

The fourth proportional to 57,108.85, 85,669.01 and 19,663.96 is: 29,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,108.85 : 85,669.01 = 19,663.96 : x
  2. Step 2: Convert to fraction form
    57,108.85/85,669.01 = 19,663.96/x
  3. Step 3: Cross multiply
    57,108.85x = 85,669.01 × 19,663.96
  4. Step 4: Simplify right side
    57,108.85x = 1,684,592,290.90
  5. Step 5: Solve for x
    x = 1,684,592,290.90/57,108.85
  6. Step 6: Final answer
    x = 29,497.92

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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.