Home / 45,811.07-68,718.68-12,530.39

Finding the Fourth Proportional to 45,811.07, 68,718.68 and 12,530.39

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Solution

The fourth proportional to 45,811.07, 68,718.68 and 12,530.39 is: 18,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.07 : 68,718.68 = 12,530.39 : x
  2. Step 2: Convert to fraction form
    45,811.07/68,718.68 = 12,530.39/x
  3. Step 3: Cross multiply
    45,811.07x = 68,718.68 × 12,530.39
  4. Step 4: Simplify right side
    45,811.07x = 861,071,454.44
  5. Step 5: Solve for x
    x = 861,071,454.44/45,811.07
  6. Step 6: Final answer
    x = 18,796.15

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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.