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Finding the Fourth Proportional to 79,213.88, 109,304.76 and 47,371.16

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Solution

The fourth proportional to 79,213.88, 109,304.76 and 47,371.16 is: 65,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,213.88 : 109,304.76 = 47,371.16 : x
  2. Step 2: Convert to fraction form
    79,213.88/109,304.76 = 47,371.16/x
  3. Step 3: Cross multiply
    79,213.88x = 109,304.76 × 47,371.16
  4. Step 4: Simplify right side
    79,213.88x = 5,177,893,274.72
  5. Step 5: Solve for x
    x = 5,177,893,274.72/79,213.88
  6. Step 6: Final answer
    x = 65,365.98

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1.5x scale

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.