Home / 54,078.20-74,630.04-31,416.92

Finding the Fourth Proportional to 54,078.20, 74,630.04 and 31,416.92

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Solution

The fourth proportional to 54,078.20, 74,630.04 and 31,416.92 is: 43,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.20 : 74,630.04 = 31,416.92 : x
  2. Step 2: Convert to fraction form
    54,078.20/74,630.04 = 31,416.92/x
  3. Step 3: Cross multiply
    54,078.20x = 74,630.04 × 31,416.92
  4. Step 4: Simplify right side
    54,078.20x = 2,344,645,996.28
  5. Step 5: Solve for x
    x = 2,344,645,996.28/54,078.20
  6. Step 6: Final answer
    x = 43,356.58

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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.