Home / 54,941.52-82,438.20-19,871.76

Finding the Fourth Proportional to 54,941.52, 82,438.20 and 19,871.76

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Solution

The fourth proportional to 54,941.52, 82,438.20 and 19,871.76 is: 29,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,941.52 : 82,438.20 = 19,871.76 : x
  2. Step 2: Convert to fraction form
    54,941.52/82,438.20 = 19,871.76/x
  3. Step 3: Cross multiply
    54,941.52x = 82,438.20 × 19,871.76
  4. Step 4: Simplify right side
    54,941.52x = 1,638,192,125.23
  5. Step 5: Solve for x
    x = 1,638,192,125.23/54,941.52
  6. Step 6: Final answer
    x = 29,817.01

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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.