Home / 42,704.20-64,056.30-40,517.20

Finding the Fourth Proportional to 42,704.20, 64,056.30 and 40,517.20

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Solution

The fourth proportional to 42,704.20, 64,056.30 and 40,517.20 is: 60,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704.20 : 64,056.30 = 40,517.20 : x
  2. Step 2: Convert to fraction form
    42,704.20/64,056.30 = 40,517.20/x
  3. Step 3: Cross multiply
    42,704.20x = 64,056.30 × 40,517.20
  4. Step 4: Simplify right side
    42,704.20x = 2,595,381,918.36
  5. Step 5: Solve for x
    x = 2,595,381,918.36/42,704.20
  6. Step 6: Final answer
    x = 60,775.80

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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.