Home / 54,986.72-82,480.16-13,433.76

Finding the Fourth Proportional to 54,986.72, 82,480.16 and 13,433.76

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Solution

The fourth proportional to 54,986.72, 82,480.16 and 13,433.76 is: 20,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,986.72 : 82,480.16 = 13,433.76 : x
  2. Step 2: Convert to fraction form
    54,986.72/82,480.16 = 13,433.76/x
  3. Step 3: Cross multiply
    54,986.72x = 82,480.16 × 13,433.76
  4. Step 4: Simplify right side
    54,986.72x = 1,108,018,674.20
  5. Step 5: Solve for x
    x = 1,108,018,674.20/54,986.72
  6. Step 6: Final answer
    x = 20,150.66

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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.