Home / 54,171.28-74,760.20-30,300.18

Finding the Fourth Proportional to 54,171.28, 74,760.20 and 30,300.18

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Solution

The fourth proportional to 54,171.28, 74,760.20 and 30,300.18 is: 41,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,171.28 : 74,760.20 = 30,300.18 : x
  2. Step 2: Convert to fraction form
    54,171.28/74,760.20 = 30,300.18/x
  3. Step 3: Cross multiply
    54,171.28x = 74,760.20 × 30,300.18
  4. Step 4: Simplify right side
    54,171.28x = 2,265,247,516.84
  5. Step 5: Solve for x
    x = 2,265,247,516.84/54,171.28
  6. Step 6: Final answer
    x = 41,816.39

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Double scale
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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.