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Finding the Fourth Proportional to 66,823.68, 92,216.48 and 38,529.12

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Solution

The fourth proportional to 66,823.68, 92,216.48 and 38,529.12 is: 53,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,823.68 : 92,216.48 = 38,529.12 : x
  2. Step 2: Convert to fraction form
    66,823.68/92,216.48 = 38,529.12/x
  3. Step 3: Cross multiply
    66,823.68x = 92,216.48 × 38,529.12
  4. Step 4: Simplify right side
    66,823.68x = 3,553,019,823.90
  5. Step 5: Solve for x
    x = 3,553,019,823.90/66,823.68
  6. Step 6: Final answer
    x = 53,170.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.