Home / 53,923.11-80,877.16-20,651.55

Finding the Fourth Proportional to 53,923.11, 80,877.16 and 20,651.55

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Solution

The fourth proportional to 53,923.11, 80,877.16 and 20,651.55 is: 30,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,923.11 : 80,877.16 = 20,651.55 : x
  2. Step 2: Convert to fraction form
    53,923.11/80,877.16 = 20,651.55/x
  3. Step 3: Cross multiply
    53,923.11x = 80,877.16 × 20,651.55
  4. Step 4: Simplify right side
    53,923.11x = 1,670,238,713.60
  5. Step 5: Solve for x
    x = 1,670,238,713.60/53,923.11
  6. Step 6: Final answer
    x = 30,974.45

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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.