Home / 77,145.20-106,469.21-43,162.30

Finding the Fourth Proportional to 77,145.20, 106,469.21 and 43,162.30

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Solution

The fourth proportional to 77,145.20, 106,469.21 and 43,162.30 is: 59,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145.20 : 106,469.21 = 43,162.30 : x
  2. Step 2: Convert to fraction form
    77,145.20/106,469.21 = 43,162.30/x
  3. Step 3: Cross multiply
    77,145.20x = 106,469.21 × 43,162.30
  4. Step 4: Simplify right side
    77,145.20x = 4,595,455,500.80
  5. Step 5: Solve for x
    x = 4,595,455,500.80/77,145.20
  6. Step 6: Final answer
    x = 59,568.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.