Home / 90,122.52-124,378.42-51,883.43

Finding the Fourth Proportional to 90,122.52, 124,378.42 and 51,883.43

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Solution

The fourth proportional to 90,122.52, 124,378.42 and 51,883.43 is: 71,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,122.52 : 124,378.42 = 51,883.43 : x
  2. Step 2: Convert to fraction form
    90,122.52/124,378.42 = 51,883.43/x
  3. Step 3: Cross multiply
    90,122.52x = 124,378.42 × 51,883.43
  4. Step 4: Simplify right side
    90,122.52x = 6,453,179,047.58
  5. Step 5: Solve for x
    x = 6,453,179,047.58/90,122.52
  6. Step 6: Final answer
    x = 71,604.51

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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.