Home / 65,185.66-89,949.99-51,789.34

Finding the Fourth Proportional to 65,185.66, 89,949.99 and 51,789.34

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Solution

The fourth proportional to 65,185.66, 89,949.99 and 51,789.34 is: 71,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,185.66 : 89,949.99 = 51,789.34 : x
  2. Step 2: Convert to fraction form
    65,185.66/89,949.99 = 51,789.34/x
  3. Step 3: Cross multiply
    65,185.66x = 89,949.99 × 51,789.34
  4. Step 4: Simplify right side
    65,185.66x = 4,658,450,615.11
  5. Step 5: Solve for x
    x = 4,658,450,615.11/65,185.66
  6. Step 6: Final answer
    x = 71,464.35

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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.