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Finding the Fourth Proportional to 18,068.40, 27,102.53 and 8,070.57

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Solution

The fourth proportional to 18,068.40, 27,102.53 and 8,070.57 is: 12,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.40 : 27,102.53 = 8,070.57 : x
  2. Step 2: Convert to fraction form
    18,068.40/27,102.53 = 8,070.57/x
  3. Step 3: Cross multiply
    18,068.40x = 27,102.53 × 8,070.57
  4. Step 4: Simplify right side
    18,068.40x = 218,732,885.72
  5. Step 5: Solve for x
    x = 218,732,885.72/18,068.40
  6. Step 6: Final answer
    x = 12,105.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.