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Finding the Fourth Proportional to 40,205.10, 60,307.65 and 19,469.10

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Solution

The fourth proportional to 40,205.10, 60,307.65 and 19,469.10 is: 29,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205.10 : 60,307.65 = 19,469.10 : x
  2. Step 2: Convert to fraction form
    40,205.10/60,307.65 = 19,469.10/x
  3. Step 3: Cross multiply
    40,205.10x = 60,307.65 × 19,469.10
  4. Step 4: Simplify right side
    40,205.10x = 1,174,135,668.62
  5. Step 5: Solve for x
    x = 1,174,135,668.62/40,205.10
  6. Step 6: Final answer
    x = 29,203.65

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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.