Home / 43,274.20-64,911.30-28,499.80

Finding the Fourth Proportional to 43,274.20, 64,911.30 and 28,499.80

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Solution

The fourth proportional to 43,274.20, 64,911.30 and 28,499.80 is: 42,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,274.20 : 64,911.30 = 28,499.80 : x
  2. Step 2: Convert to fraction form
    43,274.20/64,911.30 = 28,499.80/x
  3. Step 3: Cross multiply
    43,274.20x = 64,911.30 × 28,499.80
  4. Step 4: Simplify right side
    43,274.20x = 1,849,959,067.74
  5. Step 5: Solve for x
    x = 1,849,959,067.74/43,274.20
  6. Step 6: Final answer
    x = 42,749.70

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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.