Home / 90,009.39-135,021.77-23,449.53

Finding the Fourth Proportional to 90,009.39, 135,021.77 and 23,449.53

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Solution

The fourth proportional to 90,009.39, 135,021.77 and 23,449.53 is: 35,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,009.39 : 135,021.77 = 23,449.53 : x
  2. Step 2: Convert to fraction form
    90,009.39/135,021.77 = 23,449.53/x
  3. Step 3: Cross multiply
    90,009.39x = 135,021.77 × 23,449.53
  4. Step 4: Simplify right side
    90,009.39x = 3,166,197,046.27
  5. Step 5: Solve for x
    x = 3,166,197,046.27/90,009.39
  6. Step 6: Final answer
    x = 35,176.30

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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.