Home / 90,911.32-125,457.28-50,625.60

Finding the Fourth Proportional to 90,911.32, 125,457.28 and 50,625.60

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Solution

The fourth proportional to 90,911.32, 125,457.28 and 50,625.60 is: 69,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,911.32 : 125,457.28 = 50,625.60 : x
  2. Step 2: Convert to fraction form
    90,911.32/125,457.28 = 50,625.60/x
  3. Step 3: Cross multiply
    90,911.32x = 125,457.28 × 50,625.60
  4. Step 4: Simplify right side
    90,911.32x = 6,351,350,074.37
  5. Step 5: Solve for x
    x = 6,351,350,074.37/90,911.32
  6. Step 6: Final answer
    x = 69,863.14

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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.