Home / 51,388.98-77,091.20-18,103.20

Finding the Fourth Proportional to 51,388.98, 77,091.20 and 18,103.20

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Solution

The fourth proportional to 51,388.98, 77,091.20 and 18,103.20 is: 27,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.98 : 77,091.20 = 18,103.20 : x
  2. Step 2: Convert to fraction form
    51,388.98/77,091.20 = 18,103.20/x
  3. Step 3: Cross multiply
    51,388.98x = 77,091.20 × 18,103.20
  4. Step 4: Simplify right side
    51,388.98x = 1,395,597,411.84
  5. Step 5: Solve for x
    x = 1,395,597,411.84/51,388.98
  6. Step 6: Final answer
    x = 27,157.52

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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.