Home / 79,084.77-118,618.38-19,920.44

Finding the Fourth Proportional to 79,084.77, 118,618.38 and 19,920.44

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Solution

The fourth proportional to 79,084.77, 118,618.38 and 19,920.44 is: 29,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.77 : 118,618.38 = 19,920.44 : x
  2. Step 2: Convert to fraction form
    79,084.77/118,618.38 = 19,920.44/x
  3. Step 3: Cross multiply
    79,084.77x = 118,618.38 × 19,920.44
  4. Step 4: Simplify right side
    79,084.77x = 2,362,929,728.60
  5. Step 5: Solve for x
    x = 2,362,929,728.60/79,084.77
  6. Step 6: Final answer
    x = 29,878.44

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1.5x scale

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.