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Finding the Fourth Proportional to 85,149.03, 127,592.15 and 53,918.67

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Solution

The fourth proportional to 85,149.03, 127,592.15 and 53,918.67 is: 80,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.03 : 127,592.15 = 53,918.67 : x
  2. Step 2: Convert to fraction form
    85,149.03/127,592.15 = 53,918.67/x
  3. Step 3: Cross multiply
    85,149.03x = 127,592.15 × 53,918.67
  4. Step 4: Simplify right side
    85,149.03x = 6,879,598,760.85
  5. Step 5: Solve for x
    x = 6,879,598,760.85/85,149.03
  6. Step 6: Final answer
    x = 80,794.80

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1.5x scale

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.