Home / 90,268.24-135,430.04-40,390.32

Finding the Fourth Proportional to 90,268.24, 135,430.04 and 40,390.32

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Solution

The fourth proportional to 90,268.24, 135,430.04 and 40,390.32 is: 60,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,268.24 : 135,430.04 = 40,390.32 : x
  2. Step 2: Convert to fraction form
    90,268.24/135,430.04 = 40,390.32/x
  3. Step 3: Cross multiply
    90,268.24x = 135,430.04 × 40,390.32
  4. Step 4: Simplify right side
    90,268.24x = 5,470,062,653.21
  5. Step 5: Solve for x
    x = 5,470,062,653.21/90,268.24
  6. Step 6: Final answer
    x = 60,597.87

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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.