Home / 54,043.08-74,579.15-31,387.64

Finding the Fourth Proportional to 54,043.08, 74,579.15 and 31,387.64

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Solution

The fourth proportional to 54,043.08, 74,579.15 and 31,387.64 is: 43,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,043.08 : 74,579.15 = 31,387.64 : x
  2. Step 2: Convert to fraction form
    54,043.08/74,579.15 = 31,387.64/x
  3. Step 3: Cross multiply
    54,043.08x = 74,579.15 × 31,387.64
  4. Step 4: Simplify right side
    54,043.08x = 2,340,862,981.87
  5. Step 5: Solve for x
    x = 2,340,862,981.87/54,043.08
  6. Step 6: Final answer
    x = 43,314.76

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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.