Home / 57,910.20-86,849.68-20,465.32

Finding the Fourth Proportional to 57,910.20, 86,849.68 and 20,465.32

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Solution

The fourth proportional to 57,910.20, 86,849.68 and 20,465.32 is: 30,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,910.20 : 86,849.68 = 20,465.32 : x
  2. Step 2: Convert to fraction form
    57,910.20/86,849.68 = 20,465.32/x
  3. Step 3: Cross multiply
    57,910.20x = 86,849.68 × 20,465.32
  4. Step 4: Simplify right side
    57,910.20x = 1,777,406,493.10
  5. Step 5: Solve for x
    x = 1,777,406,493.10/57,910.20
  6. Step 6: Final answer
    x = 30,692.46

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1.5x scale

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.