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Finding the Fourth Proportional to 66,978.42, 100,462.77 and 27,000.06

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Solution

The fourth proportional to 66,978.42, 100,462.77 and 27,000.06 is: 40,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,978.42 : 100,462.77 = 27,000.06 : x
  2. Step 2: Convert to fraction form
    66,978.42/100,462.77 = 27,000.06/x
  3. Step 3: Cross multiply
    66,978.42x = 100,462.77 × 27,000.06
  4. Step 4: Simplify right side
    66,978.42x = 2,712,500,817.77
  5. Step 5: Solve for x
    x = 2,712,500,817.77/66,978.42
  6. Step 6: Final answer
    x = 40,498.13

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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.