Home / 79,215.93-109,320.75-43,405.83

Finding the Fourth Proportional to 79,215.93, 109,320.75 and 43,405.83

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Solution

The fourth proportional to 79,215.93, 109,320.75 and 43,405.83 is: 59,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,215.93 : 109,320.75 = 43,405.83 : x
  2. Step 2: Convert to fraction form
    79,215.93/109,320.75 = 43,405.83/x
  3. Step 3: Cross multiply
    79,215.93x = 109,320.75 × 43,405.83
  4. Step 4: Simplify right side
    79,215.93x = 4,745,157,889.97
  5. Step 5: Solve for x
    x = 4,745,157,889.97/79,215.93
  6. Step 6: Final answer
    x = 59,901.56

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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.