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Finding the Fourth Proportional to 64,390.37, 96,585.09 and 20,017.05

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Solution

The fourth proportional to 64,390.37, 96,585.09 and 20,017.05 is: 30,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,390.37 : 96,585.09 = 20,017.05 : x
  2. Step 2: Convert to fraction form
    64,390.37/96,585.09 = 20,017.05/x
  3. Step 3: Cross multiply
    64,390.37x = 96,585.09 × 20,017.05
  4. Step 4: Simplify right side
    64,390.37x = 1,933,348,575.78
  5. Step 5: Solve for x
    x = 1,933,348,575.78/64,390.37
  6. Step 6: Final answer
    x = 30,025.43

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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.