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Finding the Fourth Proportional to 50,720.40, 76,091.40 and 15,663.60

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Solution

The fourth proportional to 50,720.40, 76,091.40 and 15,663.60 is: 23,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.40 : 76,091.40 = 15,663.60 : x
  2. Step 2: Convert to fraction form
    50,720.40/76,091.40 = 15,663.60/x
  3. Step 3: Cross multiply
    50,720.40x = 76,091.40 × 15,663.60
  4. Step 4: Simplify right side
    50,720.40x = 1,191,865,253.04
  5. Step 5: Solve for x
    x = 1,191,865,253.04/50,720.40
  6. Step 6: Final answer
    x = 23,498.74

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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.