Home / 47,743.92-65,865.42-31,812.84

Finding the Fourth Proportional to 47,743.92, 65,865.42 and 31,812.84

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Solution

The fourth proportional to 47,743.92, 65,865.42 and 31,812.84 is: 43,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,743.92 : 65,865.42 = 31,812.84 : x
  2. Step 2: Convert to fraction form
    47,743.92/65,865.42 = 31,812.84/x
  3. Step 3: Cross multiply
    47,743.92x = 65,865.42 × 31,812.84
  4. Step 4: Simplify right side
    47,743.92x = 2,095,366,067.99
  5. Step 5: Solve for x
    x = 2,095,366,067.99/47,743.92
  6. Step 6: Final answer
    x = 43,887.60

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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.