Home / 85,012.94-127,519.51-31,704.11

Finding the Fourth Proportional to 85,012.94, 127,519.51 and 31,704.11

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Solution

The fourth proportional to 85,012.94, 127,519.51 and 31,704.11 is: 47,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.94 : 127,519.51 = 31,704.11 : x
  2. Step 2: Convert to fraction form
    85,012.94/127,519.51 = 31,704.11/x
  3. Step 3: Cross multiply
    85,012.94x = 127,519.51 × 31,704.11
  4. Step 4: Simplify right side
    85,012.94x = 4,042,891,776.07
  5. Step 5: Solve for x
    x = 4,042,891,776.07/85,012.94
  6. Step 6: Final answer
    x = 47,556.20

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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.