Home / 54,009.36-74,532.78-30,135.78

Finding the Fourth Proportional to 54,009.36, 74,532.78 and 30,135.78

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Solution

The fourth proportional to 54,009.36, 74,532.78 and 30,135.78 is: 41,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,009.36 : 74,532.78 = 30,135.78 : x
  2. Step 2: Convert to fraction form
    54,009.36/74,532.78 = 30,135.78/x
  3. Step 3: Cross multiply
    54,009.36x = 74,532.78 × 30,135.78
  4. Step 4: Simplify right side
    54,009.36x = 2,246,103,460.87
  5. Step 5: Solve for x
    x = 2,246,103,460.87/54,009.36
  6. Step 6: Final answer
    x = 41,587.30

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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.