Home / 51,487.68-71,052.30-28,826.76

Finding the Fourth Proportional to 51,487.68, 71,052.30 and 28,826.76

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Solution

The fourth proportional to 51,487.68, 71,052.30 and 28,826.76 is: 39,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.68 : 71,052.30 = 28,826.76 : x
  2. Step 2: Convert to fraction form
    51,487.68/71,052.30 = 28,826.76/x
  3. Step 3: Cross multiply
    51,487.68x = 71,052.30 × 28,826.76
  4. Step 4: Simplify right side
    51,487.68x = 2,048,207,599.55
  5. Step 5: Solve for x
    x = 2,048,207,599.55/51,487.68
  6. Step 6: Final answer
    x = 39,780.54

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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.