Home / 51,487.68-71,052.32-28,826.74

Finding the Fourth Proportional to 51,487.68, 71,052.32 and 28,826.74

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Solution

The fourth proportional to 51,487.68, 71,052.32 and 28,826.74 is: 39,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.68 : 71,052.32 = 28,826.74 : x
  2. Step 2: Convert to fraction form
    51,487.68/71,052.32 = 28,826.74/x
  3. Step 3: Cross multiply
    51,487.68x = 71,052.32 × 28,826.74
  4. Step 4: Simplify right side
    51,487.68x = 2,048,206,755.04
  5. Step 5: Solve for x
    x = 2,048,206,755.04/51,487.68
  6. Step 6: Final answer
    x = 39,780.52

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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.