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Finding the Fourth Proportional to 54,045, 81,157.14 and 33,399.72

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Solution

The fourth proportional to 54,045, 81,157.14 and 33,399.72 is: 50,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,045 : 81,157.14 = 33,399.72 : x
  2. Step 2: Convert to fraction form
    54,045/81,157.14 = 33,399.72/x
  3. Step 3: Cross multiply
    54,045x = 81,157.14 × 33,399.72
  4. Step 4: Simplify right side
    54,045x = 2,710,625,752.00
  5. Step 5: Solve for x
    x = 2,710,625,752.00/54,045
  6. Step 6: Final answer
    x = 50,154.98

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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.