Home / 54,100.62-74,642.40-31,435.20

Finding the Fourth Proportional to 54,100.62, 74,642.40 and 31,435.20

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Solution

The fourth proportional to 54,100.62, 74,642.40 and 31,435.20 is: 43,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,100.62 : 74,642.40 = 31,435.20 : x
  2. Step 2: Convert to fraction form
    54,100.62/74,642.40 = 31,435.20/x
  3. Step 3: Cross multiply
    54,100.62x = 74,642.40 × 31,435.20
  4. Step 4: Simplify right side
    54,100.62x = 2,346,398,772.48
  5. Step 5: Solve for x
    x = 2,346,398,772.48/54,100.62
  6. Step 6: Final answer
    x = 43,371.01

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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.