Home / 86,480.84-119,378.04-74,333.36

Finding the Fourth Proportional to 86,480.84, 119,378.04 and 74,333.36

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Solution

The fourth proportional to 86,480.84, 119,378.04 and 74,333.36 is: 102,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,480.84 : 119,378.04 = 74,333.36 : x
  2. Step 2: Convert to fraction form
    86,480.84/119,378.04 = 74,333.36/x
  3. Step 3: Cross multiply
    86,480.84x = 119,378.04 × 74,333.36
  4. Step 4: Simplify right side
    86,480.84x = 8,873,770,823.41
  5. Step 5: Solve for x
    x = 8,873,770,823.41/86,480.84
  6. Step 6: Final answer
    x = 102,609.67

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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.