Home / 49,678.20-74,519.10-14,621.40

Finding the Fourth Proportional to 49,678.20, 74,519.10 and 14,621.40

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Solution

The fourth proportional to 49,678.20, 74,519.10 and 14,621.40 is: 21,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,678.20 : 74,519.10 = 14,621.40 : x
  2. Step 2: Convert to fraction form
    49,678.20/74,519.10 = 14,621.40/x
  3. Step 3: Cross multiply
    49,678.20x = 74,519.10 × 14,621.40
  4. Step 4: Simplify right side
    49,678.20x = 1,089,573,568.74
  5. Step 5: Solve for x
    x = 1,089,573,568.74/49,678.20
  6. Step 6: Final answer
    x = 21,932.63

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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.