Home / 57,528.96-86,308.80-20,603.52

Finding the Fourth Proportional to 57,528.96, 86,308.80 and 20,603.52

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Solution

The fourth proportional to 57,528.96, 86,308.80 and 20,603.52 is: 30,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,528.96 : 86,308.80 = 20,603.52 : x
  2. Step 2: Convert to fraction form
    57,528.96/86,308.80 = 20,603.52/x
  3. Step 3: Cross multiply
    57,528.96x = 86,308.80 × 20,603.52
  4. Step 4: Simplify right side
    57,528.96x = 1,778,265,086.98
  5. Step 5: Solve for x
    x = 1,778,265,086.98/57,528.96
  6. Step 6: Final answer
    x = 30,910.78

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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.