Home / 40,443.20-60,664.80-10,865.60

Finding the Fourth Proportional to 40,443.20, 60,664.80 and 10,865.60

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Solution

The fourth proportional to 40,443.20, 60,664.80 and 10,865.60 is: 16,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,443.20 : 60,664.80 = 10,865.60 : x
  2. Step 2: Convert to fraction form
    40,443.20/60,664.80 = 10,865.60/x
  3. Step 3: Cross multiply
    40,443.20x = 60,664.80 × 10,865.60
  4. Step 4: Simplify right side
    40,443.20x = 659,159,450.88
  5. Step 5: Solve for x
    x = 659,159,450.88/40,443.20
  6. Step 6: Final answer
    x = 16,298.40

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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.