Home / 52,708.68-72,738.20-28,835.75

Finding the Fourth Proportional to 52,708.68, 72,738.20 and 28,835.75

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Solution

The fourth proportional to 52,708.68, 72,738.20 and 28,835.75 is: 39,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,708.68 : 72,738.20 = 28,835.75 : x
  2. Step 2: Convert to fraction form
    52,708.68/72,738.20 = 28,835.75/x
  3. Step 3: Cross multiply
    52,708.68x = 72,738.20 × 28,835.75
  4. Step 4: Simplify right side
    52,708.68x = 2,097,460,550.65
  5. Step 5: Solve for x
    x = 2,097,460,550.65/52,708.68
  6. Step 6: Final answer
    x = 39,793.46

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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.