Home / 83,984.22-115,889.81-51,713.67

Finding the Fourth Proportional to 83,984.22, 115,889.81 and 51,713.67

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Solution

The fourth proportional to 83,984.22, 115,889.81 and 51,713.67 is: 71,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,984.22 : 115,889.81 = 51,713.67 : x
  2. Step 2: Convert to fraction form
    83,984.22/115,889.81 = 51,713.67/x
  3. Step 3: Cross multiply
    83,984.22x = 115,889.81 × 51,713.67
  4. Step 4: Simplify right side
    83,984.22x = 5,993,087,025.23
  5. Step 5: Solve for x
    x = 5,993,087,025.23/83,984.22
  6. Step 6: Final answer
    x = 71,359.68

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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.