Home / 43,106.43-64,659.65-11,940.87

Finding the Fourth Proportional to 43,106.43, 64,659.65 and 11,940.87

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Solution

The fourth proportional to 43,106.43, 64,659.65 and 11,940.87 is: 17,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,106.43 : 64,659.65 = 11,940.87 : x
  2. Step 2: Convert to fraction form
    43,106.43/64,659.65 = 11,940.87/x
  3. Step 3: Cross multiply
    43,106.43x = 64,659.65 × 11,940.87
  4. Step 4: Simplify right side
    43,106.43x = 772,092,415.19
  5. Step 5: Solve for x
    x = 772,092,415.19/43,106.43
  6. Step 6: Final answer
    x = 17,911.31

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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.