Home / 43,103.66-64,656.57-11,939.18

Finding the Fourth Proportional to 43,103.66, 64,656.57 and 11,939.18

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Solution

The fourth proportional to 43,103.66, 64,656.57 and 11,939.18 is: 17,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,103.66 : 64,656.57 = 11,939.18 : x
  2. Step 2: Convert to fraction form
    43,103.66/64,656.57 = 11,939.18/x
  3. Step 3: Cross multiply
    43,103.66x = 64,656.57 × 11,939.18
  4. Step 4: Simplify right side
    43,103.66x = 771,946,104.13
  5. Step 5: Solve for x
    x = 771,946,104.13/43,103.66
  6. Step 6: Final answer
    x = 17,909.06

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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.