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Finding the Fourth Proportional to 52,135.70, 71,947.64 and 28,262.75

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Solution

The fourth proportional to 52,135.70, 71,947.64 and 28,262.75 is: 39,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.70 : 71,947.64 = 28,262.75 : x
  2. Step 2: Convert to fraction form
    52,135.70/71,947.64 = 28,262.75/x
  3. Step 3: Cross multiply
    52,135.70x = 71,947.64 × 28,262.75
  4. Step 4: Simplify right side
    52,135.70x = 2,033,438,162.41
  5. Step 5: Solve for x
    x = 2,033,438,162.41/52,135.70
  6. Step 6: Final answer
    x = 39,002.80

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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.