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Finding the Fourth Proportional to 72,170.98, 108,228.78 and 24,777.25

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Solution

The fourth proportional to 72,170.98, 108,228.78 and 24,777.25 is: 37,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,170.98 : 108,228.78 = 24,777.25 : x
  2. Step 2: Convert to fraction form
    72,170.98/108,228.78 = 24,777.25/x
  3. Step 3: Cross multiply
    72,170.98x = 108,228.78 × 24,777.25
  4. Step 4: Simplify right side
    72,170.98x = 2,681,611,268.68
  5. Step 5: Solve for x
    x = 2,681,611,268.68/72,170.98
  6. Step 6: Final answer
    x = 37,156.37

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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.