Home / 90,091.98-124,339.30-51,850.76

Finding the Fourth Proportional to 90,091.98, 124,339.30 and 51,850.76

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Solution

The fourth proportional to 90,091.98, 124,339.30 and 51,850.76 is: 71,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,091.98 : 124,339.30 = 51,850.76 : x
  2. Step 2: Convert to fraction form
    90,091.98/124,339.30 = 51,850.76/x
  3. Step 3: Cross multiply
    90,091.98x = 124,339.30 × 51,850.76
  4. Step 4: Simplify right side
    90,091.98x = 6,447,086,451.54
  5. Step 5: Solve for x
    x = 6,447,086,451.54/90,091.98
  6. Step 6: Final answer
    x = 71,561.16

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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.