Home / 57,661.02-86,530.01-20,221.07

Finding the Fourth Proportional to 57,661.02, 86,530.01 and 20,221.07

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Solution

The fourth proportional to 57,661.02, 86,530.01 and 20,221.07 is: 30,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,661.02 : 86,530.01 = 20,221.07 : x
  2. Step 2: Convert to fraction form
    57,661.02/86,530.01 = 20,221.07/x
  3. Step 3: Cross multiply
    57,661.02x = 86,530.01 × 20,221.07
  4. Step 4: Simplify right side
    57,661.02x = 1,749,728,855.56
  5. Step 5: Solve for x
    x = 1,749,728,855.56/57,661.02
  6. Step 6: Final answer
    x = 30,345.09

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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.