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Finding the Fourth Proportional to 47,816.80, 71,692.80 and 25,331.20

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Solution

The fourth proportional to 47,816.80, 71,692.80 and 25,331.20 is: 37,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,816.80 : 71,692.80 = 25,331.20 : x
  2. Step 2: Convert to fraction form
    47,816.80/71,692.80 = 25,331.20/x
  3. Step 3: Cross multiply
    47,816.80x = 71,692.80 × 25,331.20
  4. Step 4: Simplify right side
    47,816.80x = 1,816,064,655.36
  5. Step 5: Solve for x
    x = 1,816,064,655.36/47,816.80
  6. Step 6: Final answer
    x = 37,979.64

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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.