Home / 79,217.40-109,320.18-43,406.64

Finding the Fourth Proportional to 79,217.40, 109,320.18 and 43,406.64

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Solution

The fourth proportional to 79,217.40, 109,320.18 and 43,406.64 is: 59,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.40 : 109,320.18 = 43,406.64 : x
  2. Step 2: Convert to fraction form
    79,217.40/109,320.18 = 43,406.64/x
  3. Step 3: Cross multiply
    79,217.40x = 109,320.18 × 43,406.64
  4. Step 4: Simplify right side
    79,217.40x = 4,745,221,698.00
  5. Step 5: Solve for x
    x = 4,745,221,698.00/79,217.40
  6. Step 6: Final answer
    x = 59,901.26

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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.