Home / 57,109.73-85,670.28-19,664.82

Finding the Fourth Proportional to 57,109.73, 85,670.28 and 19,664.82

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Solution

The fourth proportional to 57,109.73, 85,670.28 and 19,664.82 is: 29,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109.73 : 85,670.28 = 19,664.82 : x
  2. Step 2: Convert to fraction form
    57,109.73/85,670.28 = 19,664.82/x
  3. Step 3: Cross multiply
    57,109.73x = 85,670.28 × 19,664.82
  4. Step 4: Simplify right side
    57,109.73x = 1,684,690,635.55
  5. Step 5: Solve for x
    x = 1,684,690,635.55/57,109.73
  6. Step 6: Final answer
    x = 29,499.19

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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.