Home / 60,518.10-90,789.30-18,400.80

Finding the Fourth Proportional to 60,518.10, 90,789.30 and 18,400.80

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Solution

The fourth proportional to 60,518.10, 90,789.30 and 18,400.80 is: 27,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,518.10 : 90,789.30 = 18,400.80 : x
  2. Step 2: Convert to fraction form
    60,518.10/90,789.30 = 18,400.80/x
  3. Step 3: Cross multiply
    60,518.10x = 90,789.30 × 18,400.80
  4. Step 4: Simplify right side
    60,518.10x = 1,670,595,751.44
  5. Step 5: Solve for x
    x = 1,670,595,751.44/60,518.10
  6. Step 6: Final answer
    x = 27,604.89

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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.