Home / 45,877.05-68,803.70-12,589.29

Finding the Fourth Proportional to 45,877.05, 68,803.70 and 12,589.29

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Solution

The fourth proportional to 45,877.05, 68,803.70 and 12,589.29 is: 18,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,877.05 : 68,803.70 = 12,589.29 : x
  2. Step 2: Convert to fraction form
    45,877.05/68,803.70 = 12,589.29/x
  3. Step 3: Cross multiply
    45,877.05x = 68,803.70 × 12,589.29
  4. Step 4: Simplify right side
    45,877.05x = 866,189,669.43
  5. Step 5: Solve for x
    x = 866,189,669.43/45,877.05
  6. Step 6: Final answer
    x = 18,880.67

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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.