Home / 72,548.10-108,813.96-19,950.75

Finding the Fourth Proportional to 72,548.10, 108,813.96 and 19,950.75

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Solution

The fourth proportional to 72,548.10, 108,813.96 and 19,950.75 is: 29,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.10 : 108,813.96 = 19,950.75 : x
  2. Step 2: Convert to fraction form
    72,548.10/108,813.96 = 19,950.75/x
  3. Step 3: Cross multiply
    72,548.10x = 108,813.96 × 19,950.75
  4. Step 4: Simplify right side
    72,548.10x = 2,170,920,112.47
  5. Step 5: Solve for x
    x = 2,170,920,112.47/72,548.10
  6. Step 6: Final answer
    x = 29,923.87

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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.