Home / 54,680.69-82,021.02-13,127.69

Finding the Fourth Proportional to 54,680.69, 82,021.02 and 13,127.69

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Solution

The fourth proportional to 54,680.69, 82,021.02 and 13,127.69 is: 19,691.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,680.69 : 82,021.02 = 13,127.69 : x
  2. Step 2: Convert to fraction form
    54,680.69/82,021.02 = 13,127.69/x
  3. Step 3: Cross multiply
    54,680.69x = 82,021.02 × 13,127.69
  4. Step 4: Simplify right side
    54,680.69x = 1,076,746,524.04
  5. Step 5: Solve for x
    x = 1,076,746,524.04/54,680.69
  6. Step 6: Final answer
    x = 19,691.53

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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.