Home / 84,258.54-126,396.09-21,929.04

Finding the Fourth Proportional to 84,258.54, 126,396.09 and 21,929.04

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Solution

The fourth proportional to 84,258.54, 126,396.09 and 21,929.04 is: 32,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,258.54 : 126,396.09 = 21,929.04 : x
  2. Step 2: Convert to fraction form
    84,258.54/126,396.09 = 21,929.04/x
  3. Step 3: Cross multiply
    84,258.54x = 126,396.09 × 21,929.04
  4. Step 4: Simplify right side
    84,258.54x = 2,771,744,913.45
  5. Step 5: Solve for x
    x = 2,771,744,913.45/84,258.54
  6. Step 6: Final answer
    x = 32,895.71

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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.