Home / 52,708.20-72,734.22-28,830.12

Finding the Fourth Proportional to 52,708.20, 72,734.22 and 28,830.12

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Solution

The fourth proportional to 52,708.20, 72,734.22 and 28,830.12 is: 39,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,708.20 : 72,734.22 = 28,830.12 : x
  2. Step 2: Convert to fraction form
    52,708.20/72,734.22 = 28,830.12/x
  3. Step 3: Cross multiply
    52,708.20x = 72,734.22 × 28,830.12
  4. Step 4: Simplify right side
    52,708.20x = 2,096,936,290.71
  5. Step 5: Solve for x
    x = 2,096,936,290.71/52,708.20
  6. Step 6: Final answer
    x = 39,783.87

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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.