Home / 53,922.11-80,875.67-20,650.55

Finding the Fourth Proportional to 53,922.11, 80,875.67 and 20,650.55

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Solution

The fourth proportional to 53,922.11, 80,875.67 and 20,650.55 is: 30,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,922.11 : 80,875.67 = 20,650.55 : x
  2. Step 2: Convert to fraction form
    53,922.11/80,875.67 = 20,650.55/x
  3. Step 3: Cross multiply
    53,922.11x = 80,875.67 × 20,650.55
  4. Step 4: Simplify right side
    53,922.11x = 1,670,126,559.49
  5. Step 5: Solve for x
    x = 1,670,126,559.49/53,922.11
  6. Step 6: Final answer
    x = 30,972.95

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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.