Home / 45,746.68-68,610.40-12,907

Finding the Fourth Proportional to 45,746.68, 68,610.40 and 12,907

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Solution

The fourth proportional to 45,746.68, 68,610.40 and 12,907 is: 19,357.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,746.68 : 68,610.40 = 12,907 : x
  2. Step 2: Convert to fraction form
    45,746.68/68,610.40 = 12,907/x
  3. Step 3: Cross multiply
    45,746.68x = 68,610.40 × 12,907
  4. Step 4: Simplify right side
    45,746.68x = 885,554,432.80
  5. Step 5: Solve for x
    x = 885,554,432.80/45,746.68
  6. Step 6: Final answer
    x = 19,357.79

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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.