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Finding the Fourth Proportional to 70,020.05, 105,035.99 and 30,604.84

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Solution

The fourth proportional to 70,020.05, 105,035.99 and 30,604.84 is: 45,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,020.05 : 105,035.99 = 30,604.84 : x
  2. Step 2: Convert to fraction form
    70,020.05/105,035.99 = 30,604.84/x
  3. Step 3: Cross multiply
    70,020.05x = 105,035.99 × 30,604.84
  4. Step 4: Simplify right side
    70,020.05x = 3,214,609,424.73
  5. Step 5: Solve for x
    x = 3,214,609,424.73/70,020.05
  6. Step 6: Final answer
    x = 45,909.85

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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.