Home / 43,104.12-64,656.18-11,939.38

Finding the Fourth Proportional to 43,104.12, 64,656.18 and 11,939.38

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Solution

The fourth proportional to 43,104.12, 64,656.18 and 11,939.38 is: 17,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,104.12 : 64,656.18 = 11,939.38 : x
  2. Step 2: Convert to fraction form
    43,104.12/64,656.18 = 11,939.38/x
  3. Step 3: Cross multiply
    43,104.12x = 64,656.18 × 11,939.38
  4. Step 4: Simplify right side
    43,104.12x = 771,954,702.37
  5. Step 5: Solve for x
    x = 771,954,702.37/43,104.12
  6. Step 6: Final answer
    x = 17,909.07

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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.