Home / 90,911.68-125,457.34-50,625.96

Finding the Fourth Proportional to 90,911.68, 125,457.34 and 50,625.96

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Solution

The fourth proportional to 90,911.68, 125,457.34 and 50,625.96 is: 69,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,911.68 : 125,457.34 = 50,625.96 : x
  2. Step 2: Convert to fraction form
    90,911.68/125,457.34 = 50,625.96/x
  3. Step 3: Cross multiply
    90,911.68x = 125,457.34 × 50,625.96
  4. Step 4: Simplify right side
    90,911.68x = 6,351,398,276.55
  5. Step 5: Solve for x
    x = 6,351,398,276.55/90,911.68
  6. Step 6: Final answer
    x = 69,863.39

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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.