Home / 54,139.41-81,172.16-28,842.71

Finding the Fourth Proportional to 54,139.41, 81,172.16 and 28,842.71

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Solution

The fourth proportional to 54,139.41, 81,172.16 and 28,842.71 is: 43,244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.41 : 81,172.16 = 28,842.71 : x
  2. Step 2: Convert to fraction form
    54,139.41/81,172.16 = 28,842.71/x
  3. Step 3: Cross multiply
    54,139.41x = 81,172.16 × 28,842.71
  4. Step 4: Simplify right side
    54,139.41x = 2,341,224,629.04
  5. Step 5: Solve for x
    x = 2,341,224,629.04/54,139.41
  6. Step 6: Final answer
    x = 43,244.37

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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.