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Finding the Fourth Proportional to 90,611.61, 125,034.89 and 52,907.73

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Solution

The fourth proportional to 90,611.61, 125,034.89 and 52,907.73 is: 73,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,611.61 : 125,034.89 = 52,907.73 : x
  2. Step 2: Convert to fraction form
    90,611.61/125,034.89 = 52,907.73/x
  3. Step 3: Cross multiply
    90,611.61x = 125,034.89 × 52,907.73
  4. Step 4: Simplify right side
    90,611.61x = 6,615,311,936.16
  5. Step 5: Solve for x
    x = 6,615,311,936.16/90,611.61
  6. Step 6: Final answer
    x = 73,007.33

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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.