Home / 45,518.55-68,253.09-20,529.34

Finding the Fourth Proportional to 45,518.55, 68,253.09 and 20,529.34

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Solution

The fourth proportional to 45,518.55, 68,253.09 and 20,529.34 is: 30,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,518.55 : 68,253.09 = 20,529.34 : x
  2. Step 2: Convert to fraction form
    45,518.55/68,253.09 = 20,529.34/x
  3. Step 3: Cross multiply
    45,518.55x = 68,253.09 × 20,529.34
  4. Step 4: Simplify right side
    45,518.55x = 1,401,190,890.66
  5. Step 5: Solve for x
    x = 1,401,190,890.66/45,518.55
  6. Step 6: Final answer
    x = 30,782.85

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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.