Home / 79,372.16-109,534.92-43,565.50

Finding the Fourth Proportional to 79,372.16, 109,534.92 and 43,565.50

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Solution

The fourth proportional to 79,372.16, 109,534.92 and 43,565.50 is: 60,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,372.16 : 109,534.92 = 43,565.50 : x
  2. Step 2: Convert to fraction form
    79,372.16/109,534.92 = 43,565.50/x
  3. Step 3: Cross multiply
    79,372.16x = 109,534.92 × 43,565.50
  4. Step 4: Simplify right side
    79,372.16x = 4,771,943,339.43
  5. Step 5: Solve for x
    x = 4,771,943,339.43/79,372.16
  6. Step 6: Final answer
    x = 60,121.12

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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.