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Finding the Fourth Proportional to 61,673.12, 92,524.08 and 20,120

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Solution

The fourth proportional to 61,673.12, 92,524.08 and 20,120 is: 30,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,673.12 : 92,524.08 = 20,120 : x
  2. Step 2: Convert to fraction form
    61,673.12/92,524.08 = 20,120/x
  3. Step 3: Cross multiply
    61,673.12x = 92,524.08 × 20,120
  4. Step 4: Simplify right side
    61,673.12x = 1,861,584,489.60
  5. Step 5: Solve for x
    x = 1,861,584,489.60/61,673.12
  6. Step 6: Final answer
    x = 30,184.70

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Why These Related Problems?

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