Home / 43,855.20-65,782.80-40,226.40

Finding the Fourth Proportional to 43,855.20, 65,782.80 and 40,226.40

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Solution

The fourth proportional to 43,855.20, 65,782.80 and 40,226.40 is: 60,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.20 : 65,782.80 = 40,226.40 : x
  2. Step 2: Convert to fraction form
    43,855.20/65,782.80 = 40,226.40/x
  3. Step 3: Cross multiply
    43,855.20x = 65,782.80 × 40,226.40
  4. Step 4: Simplify right side
    43,855.20x = 2,646,205,225.92
  5. Step 5: Solve for x
    x = 2,646,205,225.92/43,855.20
  6. Step 6: Final answer
    x = 60,339.60

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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.