Home / 45,406.58-68,112.43-13,817.67

Finding the Fourth Proportional to 45,406.58, 68,112.43 and 13,817.67

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Solution

The fourth proportional to 45,406.58, 68,112.43 and 13,817.67 is: 20,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,406.58 : 68,112.43 = 13,817.67 : x
  2. Step 2: Convert to fraction form
    45,406.58/68,112.43 = 13,817.67/x
  3. Step 3: Cross multiply
    45,406.58x = 68,112.43 × 13,817.67
  4. Step 4: Simplify right side
    45,406.58x = 941,154,841.27
  5. Step 5: Solve for x
    x = 941,154,841.27/45,406.58
  6. Step 6: Final answer
    x = 20,727.28

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1.5x scale

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.