Home / 45,837.56-68,756.39-12,557.91

Finding the Fourth Proportional to 45,837.56, 68,756.39 and 12,557.91

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Solution

The fourth proportional to 45,837.56, 68,756.39 and 12,557.91 is: 18,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,837.56 : 68,756.39 = 12,557.91 : x
  2. Step 2: Convert to fraction form
    45,837.56/68,756.39 = 12,557.91/x
  3. Step 3: Cross multiply
    45,837.56x = 68,756.39 × 12,557.91
  4. Step 4: Simplify right side
    45,837.56x = 863,436,557.54
  5. Step 5: Solve for x
    x = 863,436,557.54/45,837.56
  6. Step 6: Final answer
    x = 18,836.88

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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.