Home / 77,902.20-116,864.82-31,154.04

Finding the Fourth Proportional to 77,902.20, 116,864.82 and 31,154.04

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Solution

The fourth proportional to 77,902.20, 116,864.82 and 31,154.04 is: 46,735.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,902.20 : 116,864.82 = 31,154.04 : x
  2. Step 2: Convert to fraction form
    77,902.20/116,864.82 = 31,154.04/x
  3. Step 3: Cross multiply
    77,902.20x = 116,864.82 × 31,154.04
  4. Step 4: Simplify right side
    77,902.20x = 3,640,811,276.87
  5. Step 5: Solve for x
    x = 3,640,811,276.87/77,902.20
  6. Step 6: Final answer
    x = 46,735.67

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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.