Home / 51,515.49-71,083.23-30,008.79

Finding the Fourth Proportional to 51,515.49, 71,083.23 and 30,008.79

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Solution

The fourth proportional to 51,515.49, 71,083.23 and 30,008.79 is: 41,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.49 : 71,083.23 = 30,008.79 : x
  2. Step 2: Convert to fraction form
    51,515.49/71,083.23 = 30,008.79/x
  3. Step 3: Cross multiply
    51,515.49x = 71,083.23 × 30,008.79
  4. Step 4: Simplify right side
    51,515.49x = 2,133,121,721.59
  5. Step 5: Solve for x
    x = 2,133,121,721.59/51,515.49
  6. Step 6: Final answer
    x = 41,407.38

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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.