Home / 70,745.04-106,135.65-20,826.63

Finding the Fourth Proportional to 70,745.04, 106,135.65 and 20,826.63

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Solution

The fourth proportional to 70,745.04, 106,135.65 and 20,826.63 is: 31,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,745.04 : 106,135.65 = 20,826.63 : x
  2. Step 2: Convert to fraction form
    70,745.04/106,135.65 = 20,826.63/x
  3. Step 3: Cross multiply
    70,745.04x = 106,135.65 × 20,826.63
  4. Step 4: Simplify right side
    70,745.04x = 2,210,447,912.36
  5. Step 5: Solve for x
    x = 2,210,447,912.36/70,745.04
  6. Step 6: Final answer
    x = 31,245.27

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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.