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Finding the Fourth Proportional to 79,718.76, 110,019.67 and 59,540.63

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Solution

The fourth proportional to 79,718.76, 110,019.67 and 59,540.63 is: 82,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.76 : 110,019.67 = 59,540.63 : x
  2. Step 2: Convert to fraction form
    79,718.76/110,019.67 = 59,540.63/x
  3. Step 3: Cross multiply
    79,718.76x = 110,019.67 × 59,540.63
  4. Step 4: Simplify right side
    79,718.76x = 6,550,640,464.19
  5. Step 5: Solve for x
    x = 6,550,640,464.19/79,718.76
  6. Step 6: Final answer
    x = 82,171.88

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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.