Home / 86,215.74-129,194.01-48,735.42

Finding the Fourth Proportional to 86,215.74, 129,194.01 and 48,735.42

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Solution

The fourth proportional to 86,215.74, 129,194.01 and 48,735.42 is: 73,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.74 : 129,194.01 = 48,735.42 : x
  2. Step 2: Convert to fraction form
    86,215.74/129,194.01 = 48,735.42/x
  3. Step 3: Cross multiply
    86,215.74x = 129,194.01 × 48,735.42
  4. Step 4: Simplify right side
    86,215.74x = 6,296,324,338.83
  5. Step 5: Solve for x
    x = 6,296,324,338.83/86,215.74
  6. Step 6: Final answer
    x = 73,029.87

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1.5x scale

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.