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Finding the Fourth Proportional to 79,203.60, 109,290.60 and 47,360.88

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Solution

The fourth proportional to 79,203.60, 109,290.60 and 47,360.88 is: 65,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,203.60 : 109,290.60 = 47,360.88 : x
  2. Step 2: Convert to fraction form
    79,203.60/109,290.60 = 47,360.88/x
  3. Step 3: Cross multiply
    79,203.60x = 109,290.60 × 47,360.88
  4. Step 4: Simplify right side
    79,203.60x = 5,176,098,991.73
  5. Step 5: Solve for x
    x = 5,176,098,991.73/79,203.60
  6. Step 6: Final answer
    x = 65,351.81

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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.