Home / 45,871.32-68,806.34-12,591.34

Finding the Fourth Proportional to 45,871.32, 68,806.34 and 12,591.34

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Solution

The fourth proportional to 45,871.32, 68,806.34 and 12,591.34 is: 18,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.32 : 68,806.34 = 12,591.34 : x
  2. Step 2: Convert to fraction form
    45,871.32/68,806.34 = 12,591.34/x
  3. Step 3: Cross multiply
    45,871.32x = 68,806.34 × 12,591.34
  4. Step 4: Simplify right side
    45,871.32x = 866,364,021.10
  5. Step 5: Solve for x
    x = 866,364,021.10/45,871.32
  6. Step 6: Final answer
    x = 18,886.83

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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.