Home / 90,180.02-135,268.65-31,016.20

Finding the Fourth Proportional to 90,180.02, 135,268.65 and 31,016.20

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Solution

The fourth proportional to 90,180.02, 135,268.65 and 31,016.20 is: 46,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,180.02 : 135,268.65 = 31,016.20 : x
  2. Step 2: Convert to fraction form
    90,180.02/135,268.65 = 31,016.20/x
  3. Step 3: Cross multiply
    90,180.02x = 135,268.65 × 31,016.20
  4. Step 4: Simplify right side
    90,180.02x = 4,195,519,163.96
  5. Step 5: Solve for x
    x = 4,195,519,163.96/90,180.02
  6. Step 6: Final answer
    x = 46,523.82

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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.