Home / 45,964.84-68,945.89-12,686.90

Finding the Fourth Proportional to 45,964.84, 68,945.89 and 12,686.90

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Solution

The fourth proportional to 45,964.84, 68,945.89 and 12,686.90 is: 19,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,964.84 : 68,945.89 = 12,686.90 : x
  2. Step 2: Convert to fraction form
    45,964.84/68,945.89 = 12,686.90/x
  3. Step 3: Cross multiply
    45,964.84x = 68,945.89 × 12,686.90
  4. Step 4: Simplify right side
    45,964.84x = 874,709,611.84
  5. Step 5: Solve for x
    x = 874,709,611.84/45,964.84
  6. Step 6: Final answer
    x = 19,029.97

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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.