Home / 54,286.77-74,909.69-31,621.02

Finding the Fourth Proportional to 54,286.77, 74,909.69 and 31,621.02

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Solution

The fourth proportional to 54,286.77, 74,909.69 and 31,621.02 is: 43,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,286.77 : 74,909.69 = 31,621.02 : x
  2. Step 2: Convert to fraction form
    54,286.77/74,909.69 = 31,621.02/x
  3. Step 3: Cross multiply
    54,286.77x = 74,909.69 × 31,621.02
  4. Step 4: Simplify right side
    54,286.77x = 2,368,720,884.74
  5. Step 5: Solve for x
    x = 2,368,720,884.74/54,286.77
  6. Step 6: Final answer
    x = 43,633.48

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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.