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Finding the Fourth Proportional to 52,658.20, 72,667.02 and 28,784.98

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Solution

The fourth proportional to 52,658.20, 72,667.02 and 28,784.98 is: 39,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,658.20 : 72,667.02 = 28,784.98 : x
  2. Step 2: Convert to fraction form
    52,658.20/72,667.02 = 28,784.98/x
  3. Step 3: Cross multiply
    52,658.20x = 72,667.02 × 28,784.98
  4. Step 4: Simplify right side
    52,658.20x = 2,091,718,717.36
  5. Step 5: Solve for x
    x = 2,091,718,717.36/52,658.20
  6. Step 6: Final answer
    x = 39,722.56

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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.