Home / 54,100.32-74,652.96-31,129.56

Finding the Fourth Proportional to 54,100.32, 74,652.96 and 31,129.56

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Solution

The fourth proportional to 54,100.32, 74,652.96 and 31,129.56 is: 42,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,100.32 : 74,652.96 = 31,129.56 : x
  2. Step 2: Convert to fraction form
    54,100.32/74,652.96 = 31,129.56/x
  3. Step 3: Cross multiply
    54,100.32x = 74,652.96 × 31,129.56
  4. Step 4: Simplify right side
    54,100.32x = 2,323,913,797.50
  5. Step 5: Solve for x
    x = 2,323,913,797.50/54,100.32
  6. Step 6: Final answer
    x = 42,955.64

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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.