Home / 86,766.48-130,182.11-34,212.60

Finding the Fourth Proportional to 86,766.48, 130,182.11 and 34,212.60

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Solution

The fourth proportional to 86,766.48, 130,182.11 and 34,212.60 is: 51,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,766.48 : 130,182.11 = 34,212.60 : x
  2. Step 2: Convert to fraction form
    86,766.48/130,182.11 = 34,212.60/x
  3. Step 3: Cross multiply
    86,766.48x = 130,182.11 × 34,212.60
  4. Step 4: Simplify right side
    86,766.48x = 4,453,867,891.21
  5. Step 5: Solve for x
    x = 4,453,867,891.21/86,766.48
  6. Step 6: Final answer
    x = 51,331.67

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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.