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Finding the Fourth Proportional to 57,111.40, 85,667.10 and 37,412.20

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Solution

The fourth proportional to 57,111.40, 85,667.10 and 37,412.20 is: 56,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,111.40 : 85,667.10 = 37,412.20 : x
  2. Step 2: Convert to fraction form
    57,111.40/85,667.10 = 37,412.20/x
  3. Step 3: Cross multiply
    57,111.40x = 85,667.10 × 37,412.20
  4. Step 4: Simplify right side
    57,111.40x = 3,204,994,678.62
  5. Step 5: Solve for x
    x = 3,204,994,678.62/57,111.40
  6. Step 6: Final answer
    x = 56,118.30

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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.