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Finding the Fourth Proportional to 54,797.52, 75,671.70 and 40,330.50

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Solution

The fourth proportional to 54,797.52, 75,671.70 and 40,330.50 is: 55,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,797.52 : 75,671.70 = 40,330.50 : x
  2. Step 2: Convert to fraction form
    54,797.52/75,671.70 = 40,330.50/x
  3. Step 3: Cross multiply
    54,797.52x = 75,671.70 × 40,330.50
  4. Step 4: Simplify right side
    54,797.52x = 3,051,877,496.85
  5. Step 5: Solve for x
    x = 3,051,877,496.85/54,797.52
  6. Step 6: Final answer
    x = 55,693.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.