Home / 86,789.88-130,202.24-36,869.58

Finding the Fourth Proportional to 86,789.88, 130,202.24 and 36,869.58

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Solution

The fourth proportional to 86,789.88, 130,202.24 and 36,869.58 is: 55,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.88 : 130,202.24 = 36,869.58 : x
  2. Step 2: Convert to fraction form
    86,789.88/130,202.24 = 36,869.58/x
  3. Step 3: Cross multiply
    86,789.88x = 130,202.24 × 36,869.58
  4. Step 4: Simplify right side
    86,789.88x = 4,800,501,719.51
  5. Step 5: Solve for x
    x = 4,800,501,719.51/86,789.88
  6. Step 6: Final answer
    x = 55,311.77

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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.