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Finding the Fourth Proportional to 53,114.78, 79,672.39 and 21,525.44

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Solution

The fourth proportional to 53,114.78, 79,672.39 and 21,525.44 is: 32,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,114.78 : 79,672.39 = 21,525.44 : x
  2. Step 2: Convert to fraction form
    53,114.78/79,672.39 = 21,525.44/x
  3. Step 3: Cross multiply
    53,114.78x = 79,672.39 × 21,525.44
  4. Step 4: Simplify right side
    53,114.78x = 1,714,983,250.60
  5. Step 5: Solve for x
    x = 1,714,983,250.60/53,114.78
  6. Step 6: Final answer
    x = 32,288.25

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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.