Home / 70,943.14-106,440.18-30,399.64

Finding the Fourth Proportional to 70,943.14, 106,440.18 and 30,399.64

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Solution

The fourth proportional to 70,943.14, 106,440.18 and 30,399.64 is: 45,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.14 : 106,440.18 = 30,399.64 : x
  2. Step 2: Convert to fraction form
    70,943.14/106,440.18 = 30,399.64/x
  3. Step 3: Cross multiply
    70,943.14x = 106,440.18 × 30,399.64
  4. Step 4: Simplify right side
    70,943.14x = 3,235,743,153.54
  5. Step 5: Solve for x
    x = 3,235,743,153.54/70,943.14
  6. Step 6: Final answer
    x = 45,610.37

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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.