Home / 54,321.45-74,963.35-30,448.12

Finding the Fourth Proportional to 54,321.45, 74,963.35 and 30,448.12

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Solution

The fourth proportional to 54,321.45, 74,963.35 and 30,448.12 is: 42,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.45 : 74,963.35 = 30,448.12 : x
  2. Step 2: Convert to fraction form
    54,321.45/74,963.35 = 30,448.12/x
  3. Step 3: Cross multiply
    54,321.45x = 74,963.35 × 30,448.12
  4. Step 4: Simplify right side
    54,321.45x = 2,282,493,076.40
  5. Step 5: Solve for x
    x = 2,282,493,076.40/54,321.45
  6. Step 6: Final answer
    x = 42,018.26

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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.