Home / 57,710.48-86,554.78-20,261.75

Finding the Fourth Proportional to 57,710.48, 86,554.78 and 20,261.75

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Solution

The fourth proportional to 57,710.48, 86,554.78 and 20,261.75 is: 30,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.48 : 86,554.78 = 20,261.75 : x
  2. Step 2: Convert to fraction form
    57,710.48/86,554.78 = 20,261.75/x
  3. Step 3: Cross multiply
    57,710.48x = 86,554.78 × 20,261.75
  4. Step 4: Simplify right side
    57,710.48x = 1,753,750,830.24
  5. Step 5: Solve for x
    x = 1,753,750,830.24/57,710.48
  6. Step 6: Final answer
    x = 30,388.78

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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.