Home / 79,931.42-119,896.92-75,059.67

Finding the Fourth Proportional to 79,931.42, 119,896.92 and 75,059.67

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Solution

The fourth proportional to 79,931.42, 119,896.92 and 75,059.67 is: 112,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.42 : 119,896.92 = 75,059.67 : x
  2. Step 2: Convert to fraction form
    79,931.42/119,896.92 = 75,059.67/x
  3. Step 3: Cross multiply
    79,931.42x = 119,896.92 × 75,059.67
  4. Step 4: Simplify right side
    79,931.42x = 8,999,423,249.22
  5. Step 5: Solve for x
    x = 8,999,423,249.22/79,931.42
  6. Step 6: Final answer
    x = 112,589.31

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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.