Home / 54,326.75-74,971.08-30,129.44

Finding the Fourth Proportional to 54,326.75, 74,971.08 and 30,129.44

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Solution

The fourth proportional to 54,326.75, 74,971.08 and 30,129.44 is: 41,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.75 : 74,971.08 = 30,129.44 : x
  2. Step 2: Convert to fraction form
    54,326.75/74,971.08 = 30,129.44/x
  3. Step 3: Cross multiply
    54,326.75x = 74,971.08 × 30,129.44
  4. Step 4: Simplify right side
    54,326.75x = 2,258,836,281.74
  5. Step 5: Solve for x
    x = 2,258,836,281.74/54,326.75
  6. Step 6: Final answer
    x = 41,578.72

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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.