Home / 76,926.70-106,120.83-66,298.06

Finding the Fourth Proportional to 76,926.70, 106,120.83 and 66,298.06

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Solution

The fourth proportional to 76,926.70, 106,120.83 and 66,298.06 is: 91,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,926.70 : 106,120.83 = 66,298.06 : x
  2. Step 2: Convert to fraction form
    76,926.70/106,120.83 = 66,298.06/x
  3. Step 3: Cross multiply
    76,926.70x = 106,120.83 × 66,298.06
  4. Step 4: Simplify right side
    76,926.70x = 7,035,605,154.59
  5. Step 5: Solve for x
    x = 7,035,605,154.59/76,926.70
  6. Step 6: Final answer
    x = 91,458.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.