Home / 90,611.10-125,039.08-50,327.32

Finding the Fourth Proportional to 90,611.10, 125,039.08 and 50,327.32

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Solution

The fourth proportional to 90,611.10, 125,039.08 and 50,327.32 is: 69,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,611.10 : 125,039.08 = 50,327.32 : x
  2. Step 2: Convert to fraction form
    90,611.10/125,039.08 = 50,327.32/x
  3. Step 3: Cross multiply
    90,611.10x = 125,039.08 × 50,327.32
  4. Step 4: Simplify right side
    90,611.10x = 6,292,881,540.03
  5. Step 5: Solve for x
    x = 6,292,881,540.03/90,611.10
  6. Step 6: Final answer
    x = 69,449.34

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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.