Home / 77,879.07-116,828.32-30,488.04

Finding the Fourth Proportional to 77,879.07, 116,828.32 and 30,488.04

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Solution

The fourth proportional to 77,879.07, 116,828.32 and 30,488.04 is: 45,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,879.07 : 116,828.32 = 30,488.04 : x
  2. Step 2: Convert to fraction form
    77,879.07/116,828.32 = 30,488.04/x
  3. Step 3: Cross multiply
    77,879.07x = 116,828.32 × 30,488.04
  4. Step 4: Simplify right side
    77,879.07x = 3,561,866,493.29
  5. Step 5: Solve for x
    x = 3,561,866,493.29/77,879.07
  6. Step 6: Final answer
    x = 45,735.86

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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.