Home / 54,013.43-74,538.43-30,138.68

Finding the Fourth Proportional to 54,013.43, 74,538.43 and 30,138.68

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Solution

The fourth proportional to 54,013.43, 74,538.43 and 30,138.68 is: 41,591.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,013.43 : 74,538.43 = 30,138.68 : x
  2. Step 2: Convert to fraction form
    54,013.43/74,538.43 = 30,138.68/x
  3. Step 3: Cross multiply
    54,013.43x = 74,538.43 × 30,138.68
  4. Step 4: Simplify right side
    54,013.43x = 2,246,490,000.47
  5. Step 5: Solve for x
    x = 2,246,490,000.47/54,013.43
  6. Step 6: Final answer
    x = 41,591.32

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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.