Home / 51,440.08-71,010.28-30,220.72

Finding the Fourth Proportional to 51,440.08, 71,010.28 and 30,220.72

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Solution

The fourth proportional to 51,440.08, 71,010.28 and 30,220.72 is: 41,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,440.08 : 71,010.28 = 30,220.72 : x
  2. Step 2: Convert to fraction form
    51,440.08/71,010.28 = 30,220.72/x
  3. Step 3: Cross multiply
    51,440.08x = 71,010.28 × 30,220.72
  4. Step 4: Simplify right side
    51,440.08x = 2,145,981,789.00
  5. Step 5: Solve for x
    x = 2,145,981,789.00/51,440.08
  6. Step 6: Final answer
    x = 41,718.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.