Home / 45,822.64-68,733.92-12,543

Finding the Fourth Proportional to 45,822.64, 68,733.92 and 12,543

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Solution

The fourth proportional to 45,822.64, 68,733.92 and 12,543 is: 18,814.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,822.64 : 68,733.92 = 12,543 : x
  2. Step 2: Convert to fraction form
    45,822.64/68,733.92 = 12,543/x
  3. Step 3: Cross multiply
    45,822.64x = 68,733.92 × 12,543
  4. Step 4: Simplify right side
    45,822.64x = 862,129,558.56
  5. Step 5: Solve for x
    x = 862,129,558.56/45,822.64
  6. Step 6: Final answer
    x = 18,814.49

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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.