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Finding the Fourth Proportional to 64,542.83, 96,832.67 and 20,170.22

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Solution

The fourth proportional to 64,542.83, 96,832.67 and 20,170.22 is: 30,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,542.83 : 96,832.67 = 20,170.22 : x
  2. Step 2: Convert to fraction form
    64,542.83/96,832.67 = 20,170.22/x
  3. Step 3: Cross multiply
    64,542.83x = 96,832.67 × 20,170.22
  4. Step 4: Simplify right side
    64,542.83x = 1,953,135,672.07
  5. Step 5: Solve for x
    x = 1,953,135,672.07/64,542.83
  6. Step 6: Final answer
    x = 30,261.08

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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.