Home / 40,135.20-60,203-16,455.68

Finding the Fourth Proportional to 40,135.20, 60,203 and 16,455.68

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Solution

The fourth proportional to 40,135.20, 60,203 and 16,455.68 is: 24,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.20 : 60,203 = 16,455.68 : x
  2. Step 2: Convert to fraction form
    40,135.20/60,203 = 16,455.68/x
  3. Step 3: Cross multiply
    40,135.20x = 60,203 × 16,455.68
  4. Step 4: Simplify right side
    40,135.20x = 990,681,303.04
  5. Step 5: Solve for x
    x = 990,681,303.04/40,135.20
  6. Step 6: Final answer
    x = 24,683.60

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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.