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Finding the Fourth Proportional to 52,871.50, 72,963.23 and 28,672.51

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Solution

The fourth proportional to 52,871.50, 72,963.23 and 28,672.51 is: 39,568.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,871.50 : 72,963.23 = 28,672.51 : x
  2. Step 2: Convert to fraction form
    52,871.50/72,963.23 = 28,672.51/x
  3. Step 3: Cross multiply
    52,871.50x = 72,963.23 × 28,672.51
  4. Step 4: Simplify right side
    52,871.50x = 2,092,038,723.56
  5. Step 5: Solve for x
    x = 2,092,038,723.56/52,871.50
  6. Step 6: Final answer
    x = 39,568.37

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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.