Home / 51,729.11-71,383.87-30,220.85

Finding the Fourth Proportional to 51,729.11, 71,383.87 and 30,220.85

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Solution

The fourth proportional to 51,729.11, 71,383.87 and 30,220.85 is: 41,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,729.11 : 71,383.87 = 30,220.85 : x
  2. Step 2: Convert to fraction form
    51,729.11/71,383.87 = 30,220.85/x
  3. Step 3: Cross multiply
    51,729.11x = 71,383.87 × 30,220.85
  4. Step 4: Simplify right side
    51,729.11x = 2,157,281,303.24
  5. Step 5: Solve for x
    x = 2,157,281,303.24/51,729.11
  6. Step 6: Final answer
    x = 41,703.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.