Home / 41,125.40-61,678.86-18,917.43

Finding the Fourth Proportional to 41,125.40, 61,678.86 and 18,917.43

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Solution

The fourth proportional to 41,125.40, 61,678.86 and 18,917.43 is: 28,371.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,125.40 : 61,678.86 = 18,917.43 : x
  2. Step 2: Convert to fraction form
    41,125.40/61,678.86 = 18,917.43/x
  3. Step 3: Cross multiply
    41,125.40x = 61,678.86 × 18,917.43
  4. Step 4: Simplify right side
    41,125.40x = 1,166,805,516.53
  5. Step 5: Solve for x
    x = 1,166,805,516.53/41,125.40
  6. Step 6: Final answer
    x = 28,371.89

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1.5x scale

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.