Home / 86,911.56-130,367.34-40,158.36

Finding the Fourth Proportional to 86,911.56, 130,367.34 and 40,158.36

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Solution

The fourth proportional to 86,911.56, 130,367.34 and 40,158.36 is: 60,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,911.56 : 130,367.34 = 40,158.36 : x
  2. Step 2: Convert to fraction form
    86,911.56/130,367.34 = 40,158.36/x
  3. Step 3: Cross multiply
    86,911.56x = 130,367.34 × 40,158.36
  4. Step 4: Simplify right side
    86,911.56x = 5,235,338,571.96
  5. Step 5: Solve for x
    x = 5,235,338,571.96/86,911.56
  6. Step 6: Final answer
    x = 60,237.54

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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.