Home / 86,212.82-129,393.05-48,809.66

Finding the Fourth Proportional to 86,212.82, 129,393.05 and 48,809.66

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Solution

The fourth proportional to 86,212.82, 129,393.05 and 48,809.66 is: 73,256.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,212.82 : 129,393.05 = 48,809.66 : x
  2. Step 2: Convert to fraction form
    86,212.82/129,393.05 = 48,809.66/x
  3. Step 3: Cross multiply
    86,212.82x = 129,393.05 × 48,809.66
  4. Step 4: Simplify right side
    86,212.82x = 6,315,629,885.85
  5. Step 5: Solve for x
    x = 6,315,629,885.85/86,212.82
  6. Step 6: Final answer
    x = 73,256.27

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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.