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Finding the Fourth Proportional to 65,688.35, 90,650.01 and 37,394

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Solution

The fourth proportional to 65,688.35, 90,650.01 and 37,394 is: 51,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.35 : 90,650.01 = 37,394 : x
  2. Step 2: Convert to fraction form
    65,688.35/90,650.01 = 37,394/x
  3. Step 3: Cross multiply
    65,688.35x = 90,650.01 × 37,394
  4. Step 4: Simplify right side
    65,688.35x = 3,389,766,473.94
  5. Step 5: Solve for x
    x = 3,389,766,473.94/65,688.35
  6. Step 6: Final answer
    x = 51,603.77

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Why These Related Problems?

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