Home / 53,579.86-80,369.78-18,500.38

Finding the Fourth Proportional to 53,579.86, 80,369.78 and 18,500.38

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Solution

The fourth proportional to 53,579.86, 80,369.78 and 18,500.38 is: 27,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,579.86 : 80,369.78 = 18,500.38 : x
  2. Step 2: Convert to fraction form
    53,579.86/80,369.78 = 18,500.38/x
  3. Step 3: Cross multiply
    53,579.86x = 80,369.78 × 18,500.38
  4. Step 4: Simplify right side
    53,579.86x = 1,486,871,315.84
  5. Step 5: Solve for x
    x = 1,486,871,315.84/53,579.86
  6. Step 6: Final answer
    x = 27,750.56

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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.