Home / 52,161.48-71,982.40-28,288.20

Finding the Fourth Proportional to 52,161.48, 71,982.40 and 28,288.20

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Solution

The fourth proportional to 52,161.48, 71,982.40 and 28,288.20 is: 39,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,161.48 : 71,982.40 = 28,288.20 : x
  2. Step 2: Convert to fraction form
    52,161.48/71,982.40 = 28,288.20/x
  3. Step 3: Cross multiply
    52,161.48x = 71,982.40 × 28,288.20
  4. Step 4: Simplify right side
    52,161.48x = 2,036,252,527.68
  5. Step 5: Solve for x
    x = 2,036,252,527.68/52,161.48
  6. Step 6: Final answer
    x = 39,037.48

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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.