Home / 90,679.76-125,145.60-50,396.48

Finding the Fourth Proportional to 90,679.76, 125,145.60 and 50,396.48

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Solution

The fourth proportional to 90,679.76, 125,145.60 and 50,396.48 is: 69,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,679.76 : 125,145.60 = 50,396.48 : x
  2. Step 2: Convert to fraction form
    90,679.76/125,145.60 = 50,396.48/x
  3. Step 3: Cross multiply
    90,679.76x = 125,145.60 × 50,396.48
  4. Step 4: Simplify right side
    90,679.76x = 6,306,897,727.49
  5. Step 5: Solve for x
    x = 6,306,897,727.49/90,679.76
  6. Step 6: Final answer
    x = 69,551.33

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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.