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Finding the Fourth Proportional to 85,375.72, 117,819.54 and 49,567.24

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Solution

The fourth proportional to 85,375.72, 117,819.54 and 49,567.24 is: 68,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,375.72 : 117,819.54 = 49,567.24 : x
  2. Step 2: Convert to fraction form
    85,375.72/117,819.54 = 49,567.24/x
  3. Step 3: Cross multiply
    85,375.72x = 117,819.54 × 49,567.24
  4. Step 4: Simplify right side
    85,375.72x = 5,839,989,415.87
  5. Step 5: Solve for x
    x = 5,839,989,415.87/85,375.72
  6. Step 6: Final answer
    x = 68,403.40

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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.