Home / 86,171.24-118,914.20-47,930.66

Finding the Fourth Proportional to 86,171.24, 118,914.20 and 47,930.66

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Solution

The fourth proportional to 86,171.24, 118,914.20 and 47,930.66 is: 66,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,171.24 : 118,914.20 = 47,930.66 : x
  2. Step 2: Convert to fraction form
    86,171.24/118,914.20 = 47,930.66/x
  3. Step 3: Cross multiply
    86,171.24x = 118,914.20 × 47,930.66
  4. Step 4: Simplify right side
    86,171.24x = 5,699,636,089.37
  5. Step 5: Solve for x
    x = 5,699,636,089.37/86,171.24
  6. Step 6: Final answer
    x = 66,143.14

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1.5x scale

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.