Home / 90,451.50-124,823.10-50,171.46

Finding the Fourth Proportional to 90,451.50, 124,823.10 and 50,171.46

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Solution

The fourth proportional to 90,451.50, 124,823.10 and 50,171.46 is: 69,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,451.50 : 124,823.10 = 50,171.46 : x
  2. Step 2: Convert to fraction form
    90,451.50/124,823.10 = 50,171.46/x
  3. Step 3: Cross multiply
    90,451.50x = 124,823.10 × 50,171.46
  4. Step 4: Simplify right side
    90,451.50x = 6,262,557,168.73
  5. Step 5: Solve for x
    x = 6,262,557,168.73/90,451.50
  6. Step 6: Final answer
    x = 69,236.63

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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.