Home / 90,735.66-125,218.10-50,451.12

Finding the Fourth Proportional to 90,735.66, 125,218.10 and 50,451.12

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Solution

The fourth proportional to 90,735.66, 125,218.10 and 50,451.12 is: 69,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.66 : 125,218.10 = 50,451.12 : x
  2. Step 2: Convert to fraction form
    90,735.66/125,218.10 = 50,451.12/x
  3. Step 3: Cross multiply
    90,735.66x = 125,218.10 × 50,451.12
  4. Step 4: Simplify right side
    90,735.66x = 6,317,393,515.40
  5. Step 5: Solve for x
    x = 6,317,393,515.40/90,735.66
  6. Step 6: Final answer
    x = 69,624.15

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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.