Home / 68,544.74-102,784.40-40,089.72

Finding the Fourth Proportional to 68,544.74, 102,784.40 and 40,089.72

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Solution

The fourth proportional to 68,544.74, 102,784.40 and 40,089.72 is: 60,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,544.74 : 102,784.40 = 40,089.72 : x
  2. Step 2: Convert to fraction form
    68,544.74/102,784.40 = 40,089.72/x
  3. Step 3: Cross multiply
    68,544.74x = 102,784.40 × 40,089.72
  4. Step 4: Simplify right side
    68,544.74x = 4,120,597,816.37
  5. Step 5: Solve for x
    x = 4,120,597,816.37/68,544.74
  6. Step 6: Final answer
    x = 60,115.45

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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.