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Finding the Fourth Proportional to 52,575.96, 78,738.23 and 30,321.87

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Solution

The fourth proportional to 52,575.96, 78,738.23 and 30,321.87 is: 45,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,575.96 : 78,738.23 = 30,321.87 : x
  2. Step 2: Convert to fraction form
    52,575.96/78,738.23 = 30,321.87/x
  3. Step 3: Cross multiply
    52,575.96x = 78,738.23 × 30,321.87
  4. Step 4: Simplify right side
    52,575.96x = 2,387,490,222.48
  5. Step 5: Solve for x
    x = 2,387,490,222.48/52,575.96
  6. Step 6: Final answer
    x = 45,410.30

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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.