Home / 72,890.38-109,350.41-27,908.55

Finding the Fourth Proportional to 72,890.38, 109,350.41 and 27,908.55

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Solution

The fourth proportional to 72,890.38, 109,350.41 and 27,908.55 is: 41,868.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.38 : 109,350.41 = 27,908.55 : x
  2. Step 2: Convert to fraction form
    72,890.38/109,350.41 = 27,908.55/x
  3. Step 3: Cross multiply
    72,890.38x = 109,350.41 × 27,908.55
  4. Step 4: Simplify right side
    72,890.38x = 3,051,811,245.46
  5. Step 5: Solve for x
    x = 3,051,811,245.46/72,890.38
  6. Step 6: Final answer
    x = 41,868.50

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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.