Home / 52,910.83-79,365.38-21,320.12

Finding the Fourth Proportional to 52,910.83, 79,365.38 and 21,320.12

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Solution

The fourth proportional to 52,910.83, 79,365.38 and 21,320.12 is: 31,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,910.83 : 79,365.38 = 21,320.12 : x
  2. Step 2: Convert to fraction form
    52,910.83/79,365.38 = 21,320.12/x
  3. Step 3: Cross multiply
    52,910.83x = 79,365.38 × 21,320.12
  4. Step 4: Simplify right side
    52,910.83x = 1,692,079,517.26
  5. Step 5: Solve for x
    x = 1,692,079,517.26/52,910.83
  6. Step 6: Final answer
    x = 31,979.83

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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.