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Finding the Fourth Proportional to 66,884.84, 92,268.42 and 56,270.60

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Solution

The fourth proportional to 66,884.84, 92,268.42 and 56,270.60 is: 77,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,884.84 : 92,268.42 = 56,270.60 : x
  2. Step 2: Convert to fraction form
    66,884.84/92,268.42 = 56,270.60/x
  3. Step 3: Cross multiply
    66,884.84x = 92,268.42 × 56,270.60
  4. Step 4: Simplify right side
    66,884.84x = 5,191,999,354.45
  5. Step 5: Solve for x
    x = 5,191,999,354.45/66,884.84
  6. Step 6: Final answer
    x = 77,625.95

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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.