Home / 94,078.74-129,828.20-51,636.98

Finding the Fourth Proportional to 94,078.74, 129,828.20 and 51,636.98

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Solution

The fourth proportional to 94,078.74, 129,828.20 and 51,636.98 is: 71,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,078.74 : 129,828.20 = 51,636.98 : x
  2. Step 2: Convert to fraction form
    94,078.74/129,828.20 = 51,636.98/x
  3. Step 3: Cross multiply
    94,078.74x = 129,828.20 × 51,636.98
  4. Step 4: Simplify right side
    94,078.74x = 6,703,936,166.84
  5. Step 5: Solve for x
    x = 6,703,936,166.84/94,078.74
  6. Step 6: Final answer
    x = 71,258.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.