Home / 45,420.55-68,131.20-15,838.36

Finding the Fourth Proportional to 45,420.55, 68,131.20 and 15,838.36

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Solution

The fourth proportional to 45,420.55, 68,131.20 and 15,838.36 is: 23,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.55 : 68,131.20 = 15,838.36 : x
  2. Step 2: Convert to fraction form
    45,420.55/68,131.20 = 15,838.36/x
  3. Step 3: Cross multiply
    45,420.55x = 68,131.20 × 15,838.36
  4. Step 4: Simplify right side
    45,420.55x = 1,079,086,472.83
  5. Step 5: Solve for x
    x = 1,079,086,472.83/45,420.55
  6. Step 6: Final answer
    x = 23,757.67

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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.