Home / 43,514.20-65,271.30-28,739.80

Finding the Fourth Proportional to 43,514.20, 65,271.30 and 28,739.80

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Solution

The fourth proportional to 43,514.20, 65,271.30 and 28,739.80 is: 43,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,514.20 : 65,271.30 = 28,739.80 : x
  2. Step 2: Convert to fraction form
    43,514.20/65,271.30 = 28,739.80/x
  3. Step 3: Cross multiply
    43,514.20x = 65,271.30 × 28,739.80
  4. Step 4: Simplify right side
    43,514.20x = 1,875,884,107.74
  5. Step 5: Solve for x
    x = 1,875,884,107.74/43,514.20
  6. Step 6: Final answer
    x = 43,109.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.