Home / 77,917.92-116,893.52-28,000.48

Finding the Fourth Proportional to 77,917.92, 116,893.52 and 28,000.48

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Solution

The fourth proportional to 77,917.92, 116,893.52 and 28,000.48 is: 42,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,917.92 : 116,893.52 = 28,000.48 : x
  2. Step 2: Convert to fraction form
    77,917.92/116,893.52 = 28,000.48/x
  3. Step 3: Cross multiply
    77,917.92x = 116,893.52 × 28,000.48
  4. Step 4: Simplify right side
    77,917.92x = 3,273,074,668.89
  5. Step 5: Solve for x
    x = 3,273,074,668.89/77,917.92
  6. Step 6: Final answer
    x = 42,006.70

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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.