Home / 43,905.60-65,704.80-40,219.20

Finding the Fourth Proportional to 43,905.60, 65,704.80 and 40,219.20

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Solution

The fourth proportional to 43,905.60, 65,704.80 and 40,219.20 is: 60,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.60 : 65,704.80 = 40,219.20 : x
  2. Step 2: Convert to fraction form
    43,905.60/65,704.80 = 40,219.20/x
  3. Step 3: Cross multiply
    43,905.60x = 65,704.80 × 40,219.20
  4. Step 4: Simplify right side
    43,905.60x = 2,642,594,492.16
  5. Step 5: Solve for x
    x = 2,642,594,492.16/43,905.60
  6. Step 6: Final answer
    x = 60,188.10

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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.