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Finding the Fourth Proportional to 92,966.38, 128,249.78 and 67,416.69

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Solution

The fourth proportional to 92,966.38, 128,249.78 and 67,416.69 is: 93,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,966.38 : 128,249.78 = 67,416.69 : x
  2. Step 2: Convert to fraction form
    92,966.38/128,249.78 = 67,416.69/x
  3. Step 3: Cross multiply
    92,966.38x = 128,249.78 × 67,416.69
  4. Step 4: Simplify right side
    92,966.38x = 8,646,175,829.37
  5. Step 5: Solve for x
    x = 8,646,175,829.37/92,966.38
  6. Step 6: Final answer
    x = 93,003.26

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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.