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Finding the Fourth Proportional to 57,257.82, 85,750.98 and 45,373.38

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Solution

The fourth proportional to 57,257.82, 85,750.98 and 45,373.38 is: 67,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,257.82 : 85,750.98 = 45,373.38 : x
  2. Step 2: Convert to fraction form
    57,257.82/85,750.98 = 45,373.38/x
  3. Step 3: Cross multiply
    57,257.82x = 85,750.98 × 45,373.38
  4. Step 4: Simplify right side
    57,257.82x = 3,890,811,800.91
  5. Step 5: Solve for x
    x = 3,890,811,800.91/57,257.82
  6. Step 6: Final answer
    x = 67,952.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.