Home / 57,768.21-86,657.18-20,324.34

Finding the Fourth Proportional to 57,768.21, 86,657.18 and 20,324.34

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Solution

The fourth proportional to 57,768.21, 86,657.18 and 20,324.34 is: 30,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,768.21 : 86,657.18 = 20,324.34 : x
  2. Step 2: Convert to fraction form
    57,768.21/86,657.18 = 20,324.34/x
  3. Step 3: Cross multiply
    57,768.21x = 86,657.18 × 20,324.34
  4. Step 4: Simplify right side
    57,768.21x = 1,761,249,888.14
  5. Step 5: Solve for x
    x = 1,761,249,888.14/57,768.21
  6. Step 6: Final answer
    x = 30,488.22

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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.