Home / 76,719.69-105,940.04-48,088.58

Finding the Fourth Proportional to 76,719.69, 105,940.04 and 48,088.58

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Solution

The fourth proportional to 76,719.69, 105,940.04 and 48,088.58 is: 66,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,719.69 : 105,940.04 = 48,088.58 : x
  2. Step 2: Convert to fraction form
    76,719.69/105,940.04 = 48,088.58/x
  3. Step 3: Cross multiply
    76,719.69x = 105,940.04 × 48,088.58
  4. Step 4: Simplify right side
    76,719.69x = 5,094,505,318.60
  5. Step 5: Solve for x
    x = 5,094,505,318.60/76,719.69
  6. Step 6: Final answer
    x = 66,404.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.