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Finding the Fourth Proportional to 52,714.21, 72,747.43 and 28,840.89

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Solution

The fourth proportional to 52,714.21, 72,747.43 and 28,840.89 is: 39,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,714.21 : 72,747.43 = 28,840.89 : x
  2. Step 2: Convert to fraction form
    52,714.21/72,747.43 = 28,840.89/x
  3. Step 3: Cross multiply
    52,714.21x = 72,747.43 × 28,840.89
  4. Step 4: Simplify right side
    52,714.21x = 2,098,100,444.54
  5. Step 5: Solve for x
    x = 2,098,100,444.54/52,714.21
  6. Step 6: Final answer
    x = 39,801.42

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1.5x scale

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.