Home / 54,113.70-74,678.51-30,240.44

Finding the Fourth Proportional to 54,113.70, 74,678.51 and 30,240.44

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Solution

The fourth proportional to 54,113.70, 74,678.51 and 30,240.44 is: 41,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,113.70 : 74,678.51 = 30,240.44 : x
  2. Step 2: Convert to fraction form
    54,113.70/74,678.51 = 30,240.44/x
  3. Step 3: Cross multiply
    54,113.70x = 74,678.51 × 30,240.44
  4. Step 4: Simplify right side
    54,113.70x = 2,258,310,813.09
  5. Step 5: Solve for x
    x = 2,258,310,813.09/54,113.70
  6. Step 6: Final answer
    x = 41,732.70

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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.