Home / 52,715.20-79,072.80-17,651.20

Finding the Fourth Proportional to 52,715.20, 79,072.80 and 17,651.20

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Solution

The fourth proportional to 52,715.20, 79,072.80 and 17,651.20 is: 26,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,715.20 : 79,072.80 = 17,651.20 : x
  2. Step 2: Convert to fraction form
    52,715.20/79,072.80 = 17,651.20/x
  3. Step 3: Cross multiply
    52,715.20x = 79,072.80 × 17,651.20
  4. Step 4: Simplify right side
    52,715.20x = 1,395,729,807.36
  5. Step 5: Solve for x
    x = 1,395,729,807.36/52,715.20
  6. Step 6: Final answer
    x = 26,476.80

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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.