Home / 54,090.30-74,628.30-31,424.88

Finding the Fourth Proportional to 54,090.30, 74,628.30 and 31,424.88

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Solution

The fourth proportional to 54,090.30, 74,628.30 and 31,424.88 is: 43,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,090.30 : 74,628.30 = 31,424.88 : x
  2. Step 2: Convert to fraction form
    54,090.30/74,628.30 = 31,424.88/x
  3. Step 3: Cross multiply
    54,090.30x = 74,628.30 × 31,424.88
  4. Step 4: Simplify right side
    54,090.30x = 2,345,185,372.10
  5. Step 5: Solve for x
    x = 2,345,185,372.10/54,090.30
  6. Step 6: Final answer
    x = 43,356.86

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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.