Home / 64,456.08-96,684.12-20,086.42

Finding the Fourth Proportional to 64,456.08, 96,684.12 and 20,086.42

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Solution

The fourth proportional to 64,456.08, 96,684.12 and 20,086.42 is: 30,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,456.08 : 96,684.12 = 20,086.42 : x
  2. Step 2: Convert to fraction form
    64,456.08/96,684.12 = 20,086.42/x
  3. Step 3: Cross multiply
    64,456.08x = 96,684.12 × 20,086.42
  4. Step 4: Simplify right side
    64,456.08x = 1,942,037,841.65
  5. Step 5: Solve for x
    x = 1,942,037,841.65/64,456.08
  6. Step 6: Final answer
    x = 30,129.63

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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.