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Finding the Fourth Proportional to 85,199.61, 117,567 and 49,401.66

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Solution

The fourth proportional to 85,199.61, 117,567 and 49,401.66 is: 68,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,199.61 : 117,567 = 49,401.66 : x
  2. Step 2: Convert to fraction form
    85,199.61/117,567 = 49,401.66/x
  3. Step 3: Cross multiply
    85,199.61x = 117,567 × 49,401.66
  4. Step 4: Simplify right side
    85,199.61x = 5,808,004,961.22
  5. Step 5: Solve for x
    x = 5,808,004,961.22/85,199.61
  6. Step 6: Final answer
    x = 68,169.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.