Home / 57,719.36-86,568.08-20,270.64

Finding the Fourth Proportional to 57,719.36, 86,568.08 and 20,270.64

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Solution

The fourth proportional to 57,719.36, 86,568.08 and 20,270.64 is: 30,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,719.36 : 86,568.08 = 20,270.64 : x
  2. Step 2: Convert to fraction form
    57,719.36/86,568.08 = 20,270.64/x
  3. Step 3: Cross multiply
    57,719.36x = 86,568.08 × 20,270.64
  4. Step 4: Simplify right side
    57,719.36x = 1,754,790,385.17
  5. Step 5: Solve for x
    x = 1,754,790,385.17/57,719.36
  6. Step 6: Final answer
    x = 30,402.11

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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.