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Finding the Fourth Proportional to 79,375.92, 109,538.67 and 43,566.21

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Solution

The fourth proportional to 79,375.92, 109,538.67 and 43,566.21 is: 60,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.92 : 109,538.67 = 43,566.21 : x
  2. Step 2: Convert to fraction form
    79,375.92/109,538.67 = 43,566.21/x
  3. Step 3: Cross multiply
    79,375.92x = 109,538.67 × 43,566.21
  4. Step 4: Simplify right side
    79,375.92x = 4,772,184,700.34
  5. Step 5: Solve for x
    x = 4,772,184,700.34/79,375.92
  6. Step 6: Final answer
    x = 60,121.32

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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.