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Finding the Fourth Proportional to 40,992.70, 56,572.68 and 30,903.34

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Solution

The fourth proportional to 40,992.70, 56,572.68 and 30,903.34 is: 42,648.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,992.70 : 56,572.68 = 30,903.34 : x
  2. Step 2: Convert to fraction form
    40,992.70/56,572.68 = 30,903.34/x
  3. Step 3: Cross multiply
    40,992.70x = 56,572.68 × 30,903.34
  4. Step 4: Simplify right side
    40,992.70x = 1,748,284,764.75
  5. Step 5: Solve for x
    x = 1,748,284,764.75/40,992.70
  6. Step 6: Final answer
    x = 42,648.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.