Home / 43,731.20-65,596.80-40,102.40

Finding the Fourth Proportional to 43,731.20, 65,596.80 and 40,102.40

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Solution

The fourth proportional to 43,731.20, 65,596.80 and 40,102.40 is: 60,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,731.20 : 65,596.80 = 40,102.40 : x
  2. Step 2: Convert to fraction form
    43,731.20/65,596.80 = 40,102.40/x
  3. Step 3: Cross multiply
    43,731.20x = 65,596.80 × 40,102.40
  4. Step 4: Simplify right side
    43,731.20x = 2,630,589,112.32
  5. Step 5: Solve for x
    x = 2,630,589,112.32/43,731.20
  6. Step 6: Final answer
    x = 60,153.60

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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.