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Finding the Fourth Proportional to 53,959.01, 80,889.21 and 18,879.53

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Solution

The fourth proportional to 53,959.01, 80,889.21 and 18,879.53 is: 28,302.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,959.01 : 80,889.21 = 18,879.53 : x
  2. Step 2: Convert to fraction form
    53,959.01/80,889.21 = 18,879.53/x
  3. Step 3: Cross multiply
    53,959.01x = 80,889.21 × 18,879.53
  4. Step 4: Simplify right side
    53,959.01x = 1,527,150,266.87
  5. Step 5: Solve for x
    x = 1,527,150,266.87/53,959.01
  6. Step 6: Final answer
    x = 28,302.04

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1.5x scale

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.