Home / 31,149.64-46,771.90-30,139.98

Finding the Fourth Proportional to 31,149.64, 46,771.90 and 30,139.98

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Solution

The fourth proportional to 31,149.64, 46,771.90 and 30,139.98 is: 45,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,149.64 : 46,771.90 = 30,139.98 : x
  2. Step 2: Convert to fraction form
    31,149.64/46,771.90 = 30,139.98/x
  3. Step 3: Cross multiply
    31,149.64x = 46,771.90 × 30,139.98
  4. Step 4: Simplify right side
    31,149.64x = 1,409,704,130.56
  5. Step 5: Solve for x
    x = 1,409,704,130.56/31,149.64
  6. Step 6: Final answer
    x = 45,255.87

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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.