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Finding the Fourth Proportional to 52,076.78, 71,865.80 and 28,203.39

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Solution

The fourth proportional to 52,076.78, 71,865.80 and 28,203.39 is: 38,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,076.78 : 71,865.80 = 28,203.39 : x
  2. Step 2: Convert to fraction form
    52,076.78/71,865.80 = 28,203.39/x
  3. Step 3: Cross multiply
    52,076.78x = 71,865.80 × 28,203.39
  4. Step 4: Simplify right side
    52,076.78x = 2,026,859,044.05
  5. Step 5: Solve for x
    x = 2,026,859,044.05/52,076.78
  6. Step 6: Final answer
    x = 38,920.59

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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.