Home / 81,285.36-112,168.53-45,469.23

Finding the Fourth Proportional to 81,285.36, 112,168.53 and 45,469.23

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Solution

The fourth proportional to 81,285.36, 112,168.53 and 45,469.23 is: 62,744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,285.36 : 112,168.53 = 45,469.23 : x
  2. Step 2: Convert to fraction form
    81,285.36/112,168.53 = 45,469.23/x
  3. Step 3: Cross multiply
    81,285.36x = 112,168.53 × 45,469.23
  4. Step 4: Simplify right side
    81,285.36x = 5,100,216,689.33
  5. Step 5: Solve for x
    x = 5,100,216,689.33/81,285.36
  6. Step 6: Final answer
    x = 62,744.59

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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.