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Finding the Fourth Proportional to 43,752.79, 60,357.84 and 28,638.79

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Solution

The fourth proportional to 43,752.79, 60,357.84 and 28,638.79 is: 39,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,752.79 : 60,357.84 = 28,638.79 : x
  2. Step 2: Convert to fraction form
    43,752.79/60,357.84 = 28,638.79/x
  3. Step 3: Cross multiply
    43,752.79x = 60,357.84 × 28,638.79
  4. Step 4: Simplify right side
    43,752.79x = 1,728,575,504.61
  5. Step 5: Solve for x
    x = 1,728,575,504.61/43,752.79
  6. Step 6: Final answer
    x = 39,507.78

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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.