Home / 45,837.84-68,756.82-12,558.20

Finding the Fourth Proportional to 45,837.84, 68,756.82 and 12,558.20

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Solution

The fourth proportional to 45,837.84, 68,756.82 and 12,558.20 is: 18,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,837.84 : 68,756.82 = 12,558.20 : x
  2. Step 2: Convert to fraction form
    45,837.84/68,756.82 = 12,558.20/x
  3. Step 3: Cross multiply
    45,837.84x = 68,756.82 × 12,558.20
  4. Step 4: Simplify right side
    45,837.84x = 863,461,896.92
  5. Step 5: Solve for x
    x = 863,461,896.92/45,837.84
  6. Step 6: Final answer
    x = 18,837.32

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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.