Home / 80,849.04-121,286.52-34,108.80

Finding the Fourth Proportional to 80,849.04, 121,286.52 and 34,108.80

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Solution

The fourth proportional to 80,849.04, 121,286.52 and 34,108.80 is: 51,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,849.04 : 121,286.52 = 34,108.80 : x
  2. Step 2: Convert to fraction form
    80,849.04/121,286.52 = 34,108.80/x
  3. Step 3: Cross multiply
    80,849.04x = 121,286.52 × 34,108.80
  4. Step 4: Simplify right side
    80,849.04x = 4,136,937,653.38
  5. Step 5: Solve for x
    x = 4,136,937,653.38/80,849.04
  6. Step 6: Final answer
    x = 51,168.67

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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.