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Finding the Fourth Proportional to 52,800.97, 79,201.40 and 21,211.04

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Solution

The fourth proportional to 52,800.97, 79,201.40 and 21,211.04 is: 31,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,800.97 : 79,201.40 = 21,211.04 : x
  2. Step 2: Convert to fraction form
    52,800.97/79,201.40 = 21,211.04/x
  3. Step 3: Cross multiply
    52,800.97x = 79,201.40 × 21,211.04
  4. Step 4: Simplify right side
    52,800.97x = 1,679,944,063.46
  5. Step 5: Solve for x
    x = 1,679,944,063.46/52,800.97
  6. Step 6: Final answer
    x = 31,816.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.