Home / 57,708.79-86,552.25-20,260.06

Finding the Fourth Proportional to 57,708.79, 86,552.25 and 20,260.06

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Solution

The fourth proportional to 57,708.79, 86,552.25 and 20,260.06 is: 30,386.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,708.79 : 86,552.25 = 20,260.06 : x
  2. Step 2: Convert to fraction form
    57,708.79/86,552.25 = 20,260.06/x
  3. Step 3: Cross multiply
    57,708.79x = 86,552.25 × 20,260.06
  4. Step 4: Simplify right side
    57,708.79x = 1,753,553,485.78
  5. Step 5: Solve for x
    x = 1,753,553,485.78/57,708.79
  6. Step 6: Final answer
    x = 30,386.25

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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.