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Finding the Fourth Proportional to 70,579.62, 105,775.98 and 51,771.59

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Solution

The fourth proportional to 70,579.62, 105,775.98 and 51,771.59 is: 77,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,579.62 : 105,775.98 = 51,771.59 : x
  2. Step 2: Convert to fraction form
    70,579.62/105,775.98 = 51,771.59/x
  3. Step 3: Cross multiply
    70,579.62x = 105,775.98 × 51,771.59
  4. Step 4: Simplify right side
    70,579.62x = 5,476,190,668.41
  5. Step 5: Solve for x
    x = 5,476,190,668.41/70,579.62
  6. Step 6: Final answer
    x = 77,588.84

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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.