Home / 89,654.81-134,443.33-30,474.59

Finding the Fourth Proportional to 89,654.81, 134,443.33 and 30,474.59

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Solution

The fourth proportional to 89,654.81, 134,443.33 and 30,474.59 is: 45,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,654.81 : 134,443.33 = 30,474.59 : x
  2. Step 2: Convert to fraction form
    89,654.81/134,443.33 = 30,474.59/x
  3. Step 3: Cross multiply
    89,654.81x = 134,443.33 × 30,474.59
  4. Step 4: Simplify right side
    89,654.81x = 4,097,105,359.98
  5. Step 5: Solve for x
    x = 4,097,105,359.98/89,654.81
  6. Step 6: Final answer
    x = 45,698.67

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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.