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Finding the Fourth Proportional to 52,682.42, 72,701.73 and 28,809.11

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Solution

The fourth proportional to 52,682.42, 72,701.73 and 28,809.11 is: 39,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,682.42 : 72,701.73 = 28,809.11 : x
  2. Step 2: Convert to fraction form
    52,682.42/72,701.73 = 28,809.11/x
  3. Step 3: Cross multiply
    52,682.42x = 72,701.73 × 28,809.11
  4. Step 4: Simplify right side
    52,682.42x = 2,094,471,773.25
  5. Step 5: Solve for x
    x = 2,094,471,773.25/52,682.42
  6. Step 6: Final answer
    x = 39,756.56

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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.