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Finding the Fourth Proportional to 55,357.40, 82,979.40 and 27,234.20

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Solution

The fourth proportional to 55,357.40, 82,979.40 and 27,234.20 is: 40,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357.40 : 82,979.40 = 27,234.20 : x
  2. Step 2: Convert to fraction form
    55,357.40/82,979.40 = 27,234.20/x
  3. Step 3: Cross multiply
    55,357.40x = 82,979.40 × 27,234.20
  4. Step 4: Simplify right side
    55,357.40x = 2,259,877,575.48
  5. Step 5: Solve for x
    x = 2,259,877,575.48/55,357.40
  6. Step 6: Final answer
    x = 40,823.41

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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.