Home / 45,428.63-68,145.67-14,263.88

Finding the Fourth Proportional to 45,428.63, 68,145.67 and 14,263.88

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Solution

The fourth proportional to 45,428.63, 68,145.67 and 14,263.88 is: 21,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.63 : 68,145.67 = 14,263.88 : x
  2. Step 2: Convert to fraction form
    45,428.63/68,145.67 = 14,263.88/x
  3. Step 3: Cross multiply
    45,428.63x = 68,145.67 × 14,263.88
  4. Step 4: Simplify right side
    45,428.63x = 972,021,336.50
  5. Step 5: Solve for x
    x = 972,021,336.50/45,428.63
  6. Step 6: Final answer
    x = 21,396.67

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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.