Home / 66,905.51-92,321.10-38,227.03

Finding the Fourth Proportional to 66,905.51, 92,321.10 and 38,227.03

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Solution

The fourth proportional to 66,905.51, 92,321.10 and 38,227.03 is: 52,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,905.51 : 92,321.10 = 38,227.03 : x
  2. Step 2: Convert to fraction form
    66,905.51/92,321.10 = 38,227.03/x
  3. Step 3: Cross multiply
    66,905.51x = 92,321.10 × 38,227.03
  4. Step 4: Simplify right side
    66,905.51x = 3,529,161,690.14
  5. Step 5: Solve for x
    x = 3,529,161,690.14/66,905.51
  6. Step 6: Final answer
    x = 52,748.44

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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.