Home / 76,084.62-105,011.19-50,977.74

Finding the Fourth Proportional to 76,084.62, 105,011.19 and 50,977.74

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Solution

The fourth proportional to 76,084.62, 105,011.19 and 50,977.74 is: 70,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,084.62 : 105,011.19 = 50,977.74 : x
  2. Step 2: Convert to fraction form
    76,084.62/105,011.19 = 50,977.74/x
  3. Step 3: Cross multiply
    76,084.62x = 105,011.19 × 50,977.74
  4. Step 4: Simplify right side
    76,084.62x = 5,353,233,140.91
  5. Step 5: Solve for x
    x = 5,353,233,140.91/76,084.62
  6. Step 6: Final answer
    x = 70,358.94

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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.