Home / 43,105.59-64,658.30-11,940.75

Finding the Fourth Proportional to 43,105.59, 64,658.30 and 11,940.75

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Solution

The fourth proportional to 43,105.59, 64,658.30 and 11,940.75 is: 17,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,105.59 : 64,658.30 = 11,940.75 : x
  2. Step 2: Convert to fraction form
    43,105.59/64,658.30 = 11,940.75/x
  3. Step 3: Cross multiply
    43,105.59x = 64,658.30 × 11,940.75
  4. Step 4: Simplify right side
    43,105.59x = 772,068,536.02
  5. Step 5: Solve for x
    x = 772,068,536.02/43,105.59
  6. Step 6: Final answer
    x = 17,911.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.