Home / 51,515.76-71,093.52-28,855.72

Finding the Fourth Proportional to 51,515.76, 71,093.52 and 28,855.72

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Solution

The fourth proportional to 51,515.76, 71,093.52 and 28,855.72 is: 39,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.76 : 71,093.52 = 28,855.72 : x
  2. Step 2: Convert to fraction form
    51,515.76/71,093.52 = 28,855.72/x
  3. Step 3: Cross multiply
    51,515.76x = 71,093.52 × 28,855.72
  4. Step 4: Simplify right side
    51,515.76x = 2,051,454,706.93
  5. Step 5: Solve for x
    x = 2,051,454,706.93/51,515.76
  6. Step 6: Final answer
    x = 39,821.89

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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.