Home / 45,442.35-68,164.47-12,162.38

Finding the Fourth Proportional to 45,442.35, 68,164.47 and 12,162.38

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Solution

The fourth proportional to 45,442.35, 68,164.47 and 12,162.38 is: 18,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,442.35 : 68,164.47 = 12,162.38 : x
  2. Step 2: Convert to fraction form
    45,442.35/68,164.47 = 12,162.38/x
  3. Step 3: Cross multiply
    45,442.35x = 68,164.47 × 12,162.38
  4. Step 4: Simplify right side
    45,442.35x = 829,041,845.82
  5. Step 5: Solve for x
    x = 829,041,845.82/45,442.35
  6. Step 6: Final answer
    x = 18,243.82

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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.