Home / 86,579.96-129,771.60-36,628.88

Finding the Fourth Proportional to 86,579.96, 129,771.60 and 36,628.88

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Solution

The fourth proportional to 86,579.96, 129,771.60 and 36,628.88 is: 54,901.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,579.96 : 129,771.60 = 36,628.88 : x
  2. Step 2: Convert to fraction form
    86,579.96/129,771.60 = 36,628.88/x
  3. Step 3: Cross multiply
    86,579.96x = 129,771.60 × 36,628.88
  4. Step 4: Simplify right side
    86,579.96x = 4,753,388,363.81
  5. Step 5: Solve for x
    x = 4,753,388,363.81/86,579.96
  6. Step 6: Final answer
    x = 54,901.72

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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.