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Finding the Fourth Proportional to 79,712.60, 110,003.51 and 43,902.70

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Solution

The fourth proportional to 79,712.60, 110,003.51 and 43,902.70 is: 60,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712.60 : 110,003.51 = 43,902.70 : x
  2. Step 2: Convert to fraction form
    79,712.60/110,003.51 = 43,902.70/x
  3. Step 3: Cross multiply
    79,712.60x = 110,003.51 × 43,902.70
  4. Step 4: Simplify right side
    79,712.60x = 4,829,450,933.22
  5. Step 5: Solve for x
    x = 4,829,450,933.22/79,712.60
  6. Step 6: Final answer
    x = 60,585.79

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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.