Home / 54,749.34-82,136.32-19,689

Finding the Fourth Proportional to 54,749.34, 82,136.32 and 19,689

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Solution

The fourth proportional to 54,749.34, 82,136.32 and 19,689 is: 29,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,749.34 : 82,136.32 = 19,689 : x
  2. Step 2: Convert to fraction form
    54,749.34/82,136.32 = 19,689/x
  3. Step 3: Cross multiply
    54,749.34x = 82,136.32 × 19,689
  4. Step 4: Simplify right side
    54,749.34x = 1,617,182,004.48
  5. Step 5: Solve for x
    x = 1,617,182,004.48/54,749.34
  6. Step 6: Final answer
    x = 29,537.93

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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.