Home / 34,087.49-51,128.79-10,720.61

Finding the Fourth Proportional to 34,087.49, 51,128.79 and 10,720.61

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Solution

The fourth proportional to 34,087.49, 51,128.79 and 10,720.61 is: 16,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,087.49 : 51,128.79 = 10,720.61 : x
  2. Step 2: Convert to fraction form
    34,087.49/51,128.79 = 10,720.61/x
  3. Step 3: Cross multiply
    34,087.49x = 51,128.79 × 10,720.61
  4. Step 4: Simplify right side
    34,087.49x = 548,131,817.36
  5. Step 5: Solve for x
    x = 548,131,817.36/34,087.49
  6. Step 6: Final answer
    x = 16,080.15

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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.