Home / 57,719.73-86,579.14-31,078.20

Finding the Fourth Proportional to 57,719.73, 86,579.14 and 31,078.20

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Solution

The fourth proportional to 57,719.73, 86,579.14 and 31,078.20 is: 46,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,719.73 : 86,579.14 = 31,078.20 : x
  2. Step 2: Convert to fraction form
    57,719.73/86,579.14 = 31,078.20/x
  3. Step 3: Cross multiply
    57,719.73x = 86,579.14 × 31,078.20
  4. Step 4: Simplify right side
    57,719.73x = 2,690,723,828.75
  5. Step 5: Solve for x
    x = 2,690,723,828.75/57,719.73
  6. Step 6: Final answer
    x = 46,617.06

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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.