Home / 53,947.68-80,866.08-20,658.72

Finding the Fourth Proportional to 53,947.68, 80,866.08 and 20,658.72

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Solution

The fourth proportional to 53,947.68, 80,866.08 and 20,658.72 is: 30,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,947.68 : 80,866.08 = 20,658.72 : x
  2. Step 2: Convert to fraction form
    53,947.68/80,866.08 = 20,658.72/x
  3. Step 3: Cross multiply
    53,947.68x = 80,866.08 × 20,658.72
  4. Step 4: Simplify right side
    53,947.68x = 1,670,589,704.22
  5. Step 5: Solve for x
    x = 1,670,589,704.22/53,947.68
  6. Step 6: Final answer
    x = 30,966.85

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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.