Home / 54,686.20-82,038-19,157.44

Finding the Fourth Proportional to 54,686.20, 82,038 and 19,157.44

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Solution

The fourth proportional to 54,686.20, 82,038 and 19,157.44 is: 28,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,686.20 : 82,038 = 19,157.44 : x
  2. Step 2: Convert to fraction form
    54,686.20/82,038 = 19,157.44/x
  3. Step 3: Cross multiply
    54,686.20x = 82,038 × 19,157.44
  4. Step 4: Simplify right side
    54,686.20x = 1,571,638,062.72
  5. Step 5: Solve for x
    x = 1,571,638,062.72/54,686.20
  6. Step 6: Final answer
    x = 28,739.21

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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.