Home / 56,721.49-85,091.46-19,284.91

Finding the Fourth Proportional to 56,721.49, 85,091.46 and 19,284.91

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Solution

The fourth proportional to 56,721.49, 85,091.46 and 19,284.91 is: 28,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.49 : 85,091.46 = 19,284.91 : x
  2. Step 2: Convert to fraction form
    56,721.49/85,091.46 = 19,284.91/x
  3. Step 3: Cross multiply
    56,721.49x = 85,091.46 × 19,284.91
  4. Step 4: Simplify right side
    56,721.49x = 1,640,981,147.87
  5. Step 5: Solve for x
    x = 1,640,981,147.87/56,721.49
  6. Step 6: Final answer
    x = 28,930.50

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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.