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Finding the Fourth Proportional to 65,571.84, 90,484.20 and 37,272

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Solution

The fourth proportional to 65,571.84, 90,484.20 and 37,272 is: 51,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,571.84 : 90,484.20 = 37,272 : x
  2. Step 2: Convert to fraction form
    65,571.84/90,484.20 = 37,272/x
  3. Step 3: Cross multiply
    65,571.84x = 90,484.20 × 37,272
  4. Step 4: Simplify right side
    65,571.84x = 3,372,527,102.40
  5. Step 5: Solve for x
    x = 3,372,527,102.40/65,571.84
  6. Step 6: Final answer
    x = 51,432.55

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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.