Home / 43,102.91-64,655.45-11,938.43

Finding the Fourth Proportional to 43,102.91, 64,655.45 and 11,938.43

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Solution

The fourth proportional to 43,102.91, 64,655.45 and 11,938.43 is: 17,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,102.91 : 64,655.45 = 11,938.43 : x
  2. Step 2: Convert to fraction form
    43,102.91/64,655.45 = 11,938.43/x
  3. Step 3: Cross multiply
    43,102.91x = 64,655.45 × 11,938.43
  4. Step 4: Simplify right side
    43,102.91x = 771,884,180.97
  5. Step 5: Solve for x
    x = 771,884,180.97/43,102.91
  6. Step 6: Final answer
    x = 17,907.94

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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.