Home / 76,965.90-106,211.94-42,974.97

Finding the Fourth Proportional to 76,965.90, 106,211.94 and 42,974.97

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Solution

The fourth proportional to 76,965.90, 106,211.94 and 42,974.97 is: 59,304.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,965.90 : 106,211.94 = 42,974.97 : x
  2. Step 2: Convert to fraction form
    76,965.90/106,211.94 = 42,974.97/x
  3. Step 3: Cross multiply
    76,965.90x = 106,211.94 × 42,974.97
  4. Step 4: Simplify right side
    76,965.90x = 4,564,454,676.14
  5. Step 5: Solve for x
    x = 4,564,454,676.14/76,965.90
  6. Step 6: Final answer
    x = 59,304.89

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1.5x scale

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.