Home / 58,085.43-87,076.53-20,640.57

Finding the Fourth Proportional to 58,085.43, 87,076.53 and 20,640.57

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Solution

The fourth proportional to 58,085.43, 87,076.53 and 20,640.57 is: 30,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,085.43 : 87,076.53 = 20,640.57 : x
  2. Step 2: Convert to fraction form
    58,085.43/87,076.53 = 20,640.57/x
  3. Step 3: Cross multiply
    58,085.43x = 87,076.53 × 20,640.57
  4. Step 4: Simplify right side
    58,085.43x = 1,797,309,212.82
  5. Step 5: Solve for x
    x = 1,797,309,212.82/58,085.43
  6. Step 6: Final answer
    x = 30,942.51

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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.