Home / 45,783.20-68,668.40-14,621.60

Finding the Fourth Proportional to 45,783.20, 68,668.40 and 14,621.60

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Solution

The fourth proportional to 45,783.20, 68,668.40 and 14,621.60 is: 21,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.20 : 68,668.40 = 14,621.60 : x
  2. Step 2: Convert to fraction form
    45,783.20/68,668.40 = 14,621.60/x
  3. Step 3: Cross multiply
    45,783.20x = 68,668.40 × 14,621.60
  4. Step 4: Simplify right side
    45,783.20x = 1,004,041,877.44
  5. Step 5: Solve for x
    x = 1,004,041,877.44/45,783.20
  6. Step 6: Final answer
    x = 21,930.36

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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.