Home / 45,332.93-68,021.67-20,390.60

Finding the Fourth Proportional to 45,332.93, 68,021.67 and 20,390.60

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Solution

The fourth proportional to 45,332.93, 68,021.67 and 20,390.60 is: 30,595.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,332.93 : 68,021.67 = 20,390.60 : x
  2. Step 2: Convert to fraction form
    45,332.93/68,021.67 = 20,390.60/x
  3. Step 3: Cross multiply
    45,332.93x = 68,021.67 × 20,390.60
  4. Step 4: Simplify right side
    45,332.93x = 1,387,002,664.30
  5. Step 5: Solve for x
    x = 1,387,002,664.30/45,332.93
  6. Step 6: Final answer
    x = 30,595.92

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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.