Home / 90,268.08-135,419.04-40,350.15

Finding the Fourth Proportional to 90,268.08, 135,419.04 and 40,350.15

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Solution

The fourth proportional to 90,268.08, 135,419.04 and 40,350.15 is: 60,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,268.08 : 135,419.04 = 40,350.15 : x
  2. Step 2: Convert to fraction form
    90,268.08/135,419.04 = 40,350.15/x
  3. Step 3: Cross multiply
    90,268.08x = 135,419.04 × 40,350.15
  4. Step 4: Simplify right side
    90,268.08x = 5,464,178,576.86
  5. Step 5: Solve for x
    x = 5,464,178,576.86/90,268.08
  6. Step 6: Final answer
    x = 60,532.79

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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.