Home / 45,908.52-68,857.32-12,631.98

Finding the Fourth Proportional to 45,908.52, 68,857.32 and 12,631.98

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Solution

The fourth proportional to 45,908.52, 68,857.32 and 12,631.98 is: 18,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.52 : 68,857.32 = 12,631.98 : x
  2. Step 2: Convert to fraction form
    45,908.52/68,857.32 = 12,631.98/x
  3. Step 3: Cross multiply
    45,908.52x = 68,857.32 × 12,631.98
  4. Step 4: Simplify right side
    45,908.52x = 869,804,289.09
  5. Step 5: Solve for x
    x = 869,804,289.09/45,908.52
  6. Step 6: Final answer
    x = 18,946.47

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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.