Home / 45,940.43-68,904.36-12,655.71

Finding the Fourth Proportional to 45,940.43, 68,904.36 and 12,655.71

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Solution

The fourth proportional to 45,940.43, 68,904.36 and 12,655.71 is: 18,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,940.43 : 68,904.36 = 12,655.71 : x
  2. Step 2: Convert to fraction form
    45,940.43/68,904.36 = 12,655.71/x
  3. Step 3: Cross multiply
    45,940.43x = 68,904.36 × 12,655.71
  4. Step 4: Simplify right side
    45,940.43x = 872,033,253.37
  5. Step 5: Solve for x
    x = 872,033,253.37/45,940.43
  6. Step 6: Final answer
    x = 18,981.83

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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.