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Finding the Fourth Proportional to 51,604.80, 71,207.84 and 30,379.84

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Solution

The fourth proportional to 51,604.80, 71,207.84 and 30,379.84 is: 41,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,604.80 : 71,207.84 = 30,379.84 : x
  2. Step 2: Convert to fraction form
    51,604.80/71,207.84 = 30,379.84/x
  3. Step 3: Cross multiply
    51,604.80x = 71,207.84 × 30,379.84
  4. Step 4: Simplify right side
    51,604.80x = 2,163,282,785.95
  5. Step 5: Solve for x
    x = 2,163,282,785.95/51,604.80
  6. Step 6: Final answer
    x = 41,920.19

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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.