Home / 52,819.50-72,890.91-28,947.12

Finding the Fourth Proportional to 52,819.50, 72,890.91 and 28,947.12

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Solution

The fourth proportional to 52,819.50, 72,890.91 and 28,947.12 is: 39,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,819.50 : 72,890.91 = 28,947.12 : x
  2. Step 2: Convert to fraction form
    52,819.50/72,890.91 = 28,947.12/x
  3. Step 3: Cross multiply
    52,819.50x = 72,890.91 × 28,947.12
  4. Step 4: Simplify right side
    52,819.50x = 2,109,981,918.68
  5. Step 5: Solve for x
    x = 2,109,981,918.68/52,819.50
  6. Step 6: Final answer
    x = 39,947.03

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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.