Home / 57,583.20-86,399.88-20,170.16

Finding the Fourth Proportional to 57,583.20, 86,399.88 and 20,170.16

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Solution

The fourth proportional to 57,583.20, 86,399.88 and 20,170.16 is: 30,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,583.20 : 86,399.88 = 20,170.16 : x
  2. Step 2: Convert to fraction form
    57,583.20/86,399.88 = 20,170.16/x
  3. Step 3: Cross multiply
    57,583.20x = 86,399.88 × 20,170.16
  4. Step 4: Simplify right side
    57,583.20x = 1,742,699,403.58
  5. Step 5: Solve for x
    x = 1,742,699,403.58/57,583.20
  6. Step 6: Final answer
    x = 30,264.02

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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.