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Finding the Fourth Proportional to 70,057.06, 105,048.48 and 30,568.06

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Solution

The fourth proportional to 70,057.06, 105,048.48 and 30,568.06 is: 45,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057.06 : 105,048.48 = 30,568.06 : x
  2. Step 2: Convert to fraction form
    70,057.06/105,048.48 = 30,568.06/x
  3. Step 3: Cross multiply
    70,057.06x = 105,048.48 × 30,568.06
  4. Step 4: Simplify right side
    70,057.06x = 3,211,128,239.55
  5. Step 5: Solve for x
    x = 3,211,128,239.55/70,057.06
  6. Step 6: Final answer
    x = 45,835.90

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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.