Home / 77,783.10-116,834.97-51,211.86

Finding the Fourth Proportional to 77,783.10, 116,834.97 and 51,211.86

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Solution

The fourth proportional to 77,783.10, 116,834.97 and 51,211.86 is: 76,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,783.10 : 116,834.97 = 51,211.86 : x
  2. Step 2: Convert to fraction form
    77,783.10/116,834.97 = 51,211.86/x
  3. Step 3: Cross multiply
    77,783.10x = 116,834.97 × 51,211.86
  4. Step 4: Simplify right side
    77,783.10x = 5,983,336,126.74
  5. Step 5: Solve for x
    x = 5,983,336,126.74/77,783.10
  6. Step 6: Final answer
    x = 76,923.34

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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.