Home / 74,915.69-112,377.85-28,168.97

Finding the Fourth Proportional to 74,915.69, 112,377.85 and 28,168.97

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Solution

The fourth proportional to 74,915.69, 112,377.85 and 28,168.97 is: 42,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,915.69 : 112,377.85 = 28,168.97 : x
  2. Step 2: Convert to fraction form
    74,915.69/112,377.85 = 28,168.97/x
  3. Step 3: Cross multiply
    74,915.69x = 112,377.85 × 28,168.97
  4. Step 4: Simplify right side
    74,915.69x = 3,165,567,582.58
  5. Step 5: Solve for x
    x = 3,165,567,582.58/74,915.69
  6. Step 6: Final answer
    x = 42,255.07

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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.