Home / 79,520.16-109,740.63-43,713.48

Finding the Fourth Proportional to 79,520.16, 109,740.63 and 43,713.48

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Solution

The fourth proportional to 79,520.16, 109,740.63 and 43,713.48 is: 60,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,520.16 : 109,740.63 = 43,713.48 : x
  2. Step 2: Convert to fraction form
    79,520.16/109,740.63 = 43,713.48/x
  3. Step 3: Cross multiply
    79,520.16x = 109,740.63 × 43,713.48
  4. Step 4: Simplify right side
    79,520.16x = 4,797,144,834.69
  5. Step 5: Solve for x
    x = 4,797,144,834.69/79,520.16
  6. Step 6: Final answer
    x = 60,326.15

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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.