Home / 45,129.63-67,705.26-13,964.88

Finding the Fourth Proportional to 45,129.63, 67,705.26 and 13,964.88

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Solution

The fourth proportional to 45,129.63, 67,705.26 and 13,964.88 is: 20,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.63 : 67,705.26 = 13,964.88 : x
  2. Step 2: Convert to fraction form
    45,129.63/67,705.26 = 13,964.88/x
  3. Step 3: Cross multiply
    45,129.63x = 67,705.26 × 13,964.88
  4. Step 4: Simplify right side
    45,129.63x = 945,495,831.27
  5. Step 5: Solve for x
    x = 945,495,831.27/45,129.63
  6. Step 6: Final answer
    x = 20,950.67

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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.