Home / 79,770.96-110,087.45-45,780.89

Finding the Fourth Proportional to 79,770.96, 110,087.45 and 45,780.89

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Solution

The fourth proportional to 79,770.96, 110,087.45 and 45,780.89 is: 63,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,770.96 : 110,087.45 = 45,780.89 : x
  2. Step 2: Convert to fraction form
    79,770.96/110,087.45 = 45,780.89/x
  3. Step 3: Cross multiply
    79,770.96x = 110,087.45 × 45,780.89
  4. Step 4: Simplify right side
    79,770.96x = 5,039,900,659.49
  5. Step 5: Solve for x
    x = 5,039,900,659.49/79,770.96
  6. Step 6: Final answer
    x = 63,179.64

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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.