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Finding the Fourth Proportional to 66,990.35, 92,444.28 and 37,918.09

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Solution

The fourth proportional to 66,990.35, 92,444.28 and 37,918.09 is: 52,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,990.35 : 92,444.28 = 37,918.09 : x
  2. Step 2: Convert to fraction form
    66,990.35/92,444.28 = 37,918.09/x
  3. Step 3: Cross multiply
    66,990.35x = 92,444.28 × 37,918.09
  4. Step 4: Simplify right side
    66,990.35x = 3,505,310,529.03
  5. Step 5: Solve for x
    x = 3,505,310,529.03/66,990.35
  6. Step 6: Final answer
    x = 52,325.60

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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.