Home / 79,388.47-119,020.56-54,352.81

Finding the Fourth Proportional to 79,388.47, 119,020.56 and 54,352.81

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Solution

The fourth proportional to 79,388.47, 119,020.56 and 54,352.81 is: 81,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,388.47 : 119,020.56 = 54,352.81 : x
  2. Step 2: Convert to fraction form
    79,388.47/119,020.56 = 54,352.81/x
  3. Step 3: Cross multiply
    79,388.47x = 119,020.56 × 54,352.81
  4. Step 4: Simplify right side
    79,388.47x = 6,469,101,883.77
  5. Step 5: Solve for x
    x = 6,469,101,883.77/79,388.47
  6. Step 6: Final answer
    x = 81,486.67

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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.