Home / 54,402.12-81,512.64-38,528.64

Finding the Fourth Proportional to 54,402.12, 81,512.64 and 38,528.64

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Solution

The fourth proportional to 54,402.12, 81,512.64 and 38,528.64 is: 57,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,402.12 : 81,512.64 = 38,528.64 : x
  2. Step 2: Convert to fraction form
    54,402.12/81,512.64 = 38,528.64/x
  3. Step 3: Cross multiply
    54,402.12x = 81,512.64 × 38,528.64
  4. Step 4: Simplify right side
    54,402.12x = 3,140,571,162.01
  5. Step 5: Solve for x
    x = 3,140,571,162.01/54,402.12
  6. Step 6: Final answer
    x = 57,728.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.