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Finding the Fourth Proportional to 66,758.82, 92,123.36 and 36,538.12

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Solution

The fourth proportional to 66,758.82, 92,123.36 and 36,538.12 is: 50,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,758.82 : 92,123.36 = 36,538.12 : x
  2. Step 2: Convert to fraction form
    66,758.82/92,123.36 = 36,538.12/x
  3. Step 3: Cross multiply
    66,758.82x = 92,123.36 × 36,538.12
  4. Step 4: Simplify right side
    66,758.82x = 3,366,014,451.96
  5. Step 5: Solve for x
    x = 3,366,014,451.96/66,758.82
  6. Step 6: Final answer
    x = 50,420.52

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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.