Home / 86,964.21-130,212.48-55,202.33

Finding the Fourth Proportional to 86,964.21, 130,212.48 and 55,202.33

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Solution

The fourth proportional to 86,964.21, 130,212.48 and 55,202.33 is: 82,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,964.21 : 130,212.48 = 55,202.33 : x
  2. Step 2: Convert to fraction form
    86,964.21/130,212.48 = 55,202.33/x
  3. Step 3: Cross multiply
    86,964.21x = 130,212.48 × 55,202.33
  4. Step 4: Simplify right side
    86,964.21x = 7,188,032,823.62
  5. Step 5: Solve for x
    x = 7,188,032,823.62/86,964.21
  6. Step 6: Final answer
    x = 82,655.07

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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.