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Finding the Fourth Proportional to 40,130.40, 60,202.80 and 16,759.20

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Solution

The fourth proportional to 40,130.40, 60,202.80 and 16,759.20 is: 25,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,130.40 : 60,202.80 = 16,759.20 : x
  2. Step 2: Convert to fraction form
    40,130.40/60,202.80 = 16,759.20/x
  3. Step 3: Cross multiply
    40,130.40x = 60,202.80 × 16,759.20
  4. Step 4: Simplify right side
    40,130.40x = 1,008,950,765.76
  5. Step 5: Solve for x
    x = 1,008,950,765.76/40,130.40
  6. Step 6: Final answer
    x = 25,141.81

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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.