Home / 54,129.96-81,189.73-16,679.98

Finding the Fourth Proportional to 54,129.96, 81,189.73 and 16,679.98

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Solution

The fourth proportional to 54,129.96, 81,189.73 and 16,679.98 is: 25,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.96 : 81,189.73 = 16,679.98 : x
  2. Step 2: Convert to fraction form
    54,129.96/81,189.73 = 16,679.98/x
  3. Step 3: Cross multiply
    54,129.96x = 81,189.73 × 16,679.98
  4. Step 4: Simplify right side
    54,129.96x = 1,354,243,175.80
  5. Step 5: Solve for x
    x = 1,354,243,175.80/54,129.96
  6. Step 6: Final answer
    x = 25,018.36

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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.