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Finding the Fourth Proportional to 70,893.38, 106,307.58 and 30,910.70

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Solution

The fourth proportional to 70,893.38, 106,307.58 and 30,910.70 is: 46,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.38 : 106,307.58 = 30,910.70 : x
  2. Step 2: Convert to fraction form
    70,893.38/106,307.58 = 30,910.70/x
  3. Step 3: Cross multiply
    70,893.38x = 106,307.58 × 30,910.70
  4. Step 4: Simplify right side
    70,893.38x = 3,286,041,713.11
  5. Step 5: Solve for x
    x = 3,286,041,713.11/70,893.38
  6. Step 6: Final answer
    x = 46,351.88

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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.