Home / 51,013.80-76,520.60-13,573.88

Finding the Fourth Proportional to 51,013.80, 76,520.60 and 13,573.88

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Solution

The fourth proportional to 51,013.80, 76,520.60 and 13,573.88 is: 20,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,013.80 : 76,520.60 = 13,573.88 : x
  2. Step 2: Convert to fraction form
    51,013.80/76,520.60 = 13,573.88/x
  3. Step 3: Cross multiply
    51,013.80x = 76,520.60 × 13,573.88
  4. Step 4: Simplify right side
    51,013.80x = 1,038,681,093.26
  5. Step 5: Solve for x
    x = 1,038,681,093.26/51,013.80
  6. Step 6: Final answer
    x = 20,360.79

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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.