Home / 45,378.75-68,071.37-12,098.64

Finding the Fourth Proportional to 45,378.75, 68,071.37 and 12,098.64

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Solution

The fourth proportional to 45,378.75, 68,071.37 and 12,098.64 is: 18,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.75 : 68,071.37 = 12,098.64 : x
  2. Step 2: Convert to fraction form
    45,378.75/68,071.37 = 12,098.64/x
  3. Step 3: Cross multiply
    45,378.75x = 68,071.37 × 12,098.64
  4. Step 4: Simplify right side
    45,378.75x = 823,570,752.23
  5. Step 5: Solve for x
    x = 823,570,752.23/45,378.75
  6. Step 6: Final answer
    x = 18,148.82

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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.