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Finding the Fourth Proportional to 40,952, 56,472 and 38,571.20

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Solution

The fourth proportional to 40,952, 56,472 and 38,571.20 is: 53,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,952 : 56,472 = 38,571.20 : x
  2. Step 2: Convert to fraction form
    40,952/56,472 = 38,571.20/x
  3. Step 3: Cross multiply
    40,952x = 56,472 × 38,571.20
  4. Step 4: Simplify right side
    40,952x = 2,178,192,806.40
  5. Step 5: Solve for x
    x = 2,178,192,806.40/40,952
  6. Step 6: Final answer
    x = 53,188.92

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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.