Home / 70,790.12-106,148.46-20,863.64

Finding the Fourth Proportional to 70,790.12, 106,148.46 and 20,863.64

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Solution

The fourth proportional to 70,790.12, 106,148.46 and 20,863.64 is: 31,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.12 : 106,148.46 = 20,863.64 : x
  2. Step 2: Convert to fraction form
    70,790.12/106,148.46 = 20,863.64/x
  3. Step 3: Cross multiply
    70,790.12x = 106,148.46 × 20,863.64
  4. Step 4: Simplify right side
    70,790.12x = 2,214,643,255.99
  5. Step 5: Solve for x
    x = 2,214,643,255.99/70,790.12
  6. Step 6: Final answer
    x = 31,284.64

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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.