Home / 41,126.64-61,680.74-18,918.69

Finding the Fourth Proportional to 41,126.64, 61,680.74 and 18,918.69

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Solution

The fourth proportional to 41,126.64, 61,680.74 and 18,918.69 is: 28,373.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,126.64 : 61,680.74 = 18,918.69 : x
  2. Step 2: Convert to fraction form
    41,126.64/61,680.74 = 18,918.69/x
  3. Step 3: Cross multiply
    41,126.64x = 61,680.74 × 18,918.69
  4. Step 4: Simplify right side
    41,126.64x = 1,166,918,473.13
  5. Step 5: Solve for x
    x = 1,166,918,473.13/41,126.64
  6. Step 6: Final answer
    x = 28,373.79

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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.