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Finding the Fourth Proportional to 54,672.80, 81,965.40 and 50,298.80

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Solution

The fourth proportional to 54,672.80, 81,965.40 and 50,298.80 is: 75,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,672.80 : 81,965.40 = 50,298.80 : x
  2. Step 2: Convert to fraction form
    54,672.80/81,965.40 = 50,298.80/x
  3. Step 3: Cross multiply
    54,672.80x = 81,965.40 × 50,298.80
  4. Step 4: Simplify right side
    54,672.80x = 4,122,761,261.52
  5. Step 5: Solve for x
    x = 4,122,761,261.52/54,672.80
  6. Step 6: Final answer
    x = 75,407.90

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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.