Home / 79,336.65-118,974.09-39,866.25

Finding the Fourth Proportional to 79,336.65, 118,974.09 and 39,866.25

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Solution

The fourth proportional to 79,336.65, 118,974.09 and 39,866.25 is: 59,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,336.65 : 118,974.09 = 39,866.25 : x
  2. Step 2: Convert to fraction form
    79,336.65/118,974.09 = 39,866.25/x
  3. Step 3: Cross multiply
    79,336.65x = 118,974.09 × 39,866.25
  4. Step 4: Simplify right side
    79,336.65x = 4,743,050,815.46
  5. Step 5: Solve for x
    x = 4,743,050,815.46/79,336.65
  6. Step 6: Final answer
    x = 59,783.86

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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.