Home / 54,679.31-82,018.96-31,289.21

Finding the Fourth Proportional to 54,679.31, 82,018.96 and 31,289.21

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Solution

The fourth proportional to 54,679.31, 82,018.96 and 31,289.21 is: 46,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.31 : 82,018.96 = 31,289.21 : x
  2. Step 2: Convert to fraction form
    54,679.31/82,018.96 = 31,289.21/x
  3. Step 3: Cross multiply
    54,679.31x = 82,018.96 × 31,289.21
  4. Step 4: Simplify right side
    54,679.31x = 2,566,308,463.42
  5. Step 5: Solve for x
    x = 2,566,308,463.42/54,679.31
  6. Step 6: Final answer
    x = 46,933.81

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1.5x scale

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.