Home / 90,621.64-135,932.46-28,297.48

Finding the Fourth Proportional to 90,621.64, 135,932.46 and 28,297.48

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Solution

The fourth proportional to 90,621.64, 135,932.46 and 28,297.48 is: 42,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,621.64 : 135,932.46 = 28,297.48 : x
  2. Step 2: Convert to fraction form
    90,621.64/135,932.46 = 28,297.48/x
  3. Step 3: Cross multiply
    90,621.64x = 135,932.46 × 28,297.48
  4. Step 4: Simplify right side
    90,621.64x = 3,846,546,068.20
  5. Step 5: Solve for x
    x = 3,846,546,068.20/90,621.64
  6. Step 6: Final answer
    x = 42,446.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.