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Finding the Fourth Proportional to 57,051.60, 85,415.40 and 53,948.40

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Solution

The fourth proportional to 57,051.60, 85,415.40 and 53,948.40 is: 80,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,051.60 : 85,415.40 = 53,948.40 : x
  2. Step 2: Convert to fraction form
    57,051.60/85,415.40 = 53,948.40/x
  3. Step 3: Cross multiply
    57,051.60x = 85,415.40 × 53,948.40
  4. Step 4: Simplify right side
    57,051.60x = 4,608,024,165.36
  5. Step 5: Solve for x
    x = 4,608,024,165.36/57,051.60
  6. Step 6: Final answer
    x = 80,769.41

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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.