Home / 72,544.27-100,114.22-40,278.89

Finding the Fourth Proportional to 72,544.27, 100,114.22 and 40,278.89

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Solution

The fourth proportional to 72,544.27, 100,114.22 and 40,278.89 is: 55,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,544.27 : 100,114.22 = 40,278.89 : x
  2. Step 2: Convert to fraction form
    72,544.27/100,114.22 = 40,278.89/x
  3. Step 3: Cross multiply
    72,544.27x = 100,114.22 × 40,278.89
  4. Step 4: Simplify right side
    72,544.27x = 4,032,489,654.82
  5. Step 5: Solve for x
    x = 4,032,489,654.82/72,544.27
  6. Step 6: Final answer
    x = 55,586.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.