Home / 43,855.40-65,783.10-40,476.20

Finding the Fourth Proportional to 43,855.40, 65,783.10 and 40,476.20

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Solution

The fourth proportional to 43,855.40, 65,783.10 and 40,476.20 is: 60,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.40 : 65,783.10 = 40,476.20 : x
  2. Step 2: Convert to fraction form
    43,855.40/65,783.10 = 40,476.20/x
  3. Step 3: Cross multiply
    43,855.40x = 65,783.10 × 40,476.20
  4. Step 4: Simplify right side
    43,855.40x = 2,662,649,912.22
  5. Step 5: Solve for x
    x = 2,662,649,912.22/43,855.40
  6. Step 6: Final answer
    x = 60,714.30

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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.