Home / 90,650.47-135,937.26-43,210.69

Finding the Fourth Proportional to 90,650.47, 135,937.26 and 43,210.69

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Solution

The fourth proportional to 90,650.47, 135,937.26 and 43,210.69 is: 64,797.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,650.47 : 135,937.26 = 43,210.69 : x
  2. Step 2: Convert to fraction form
    90,650.47/135,937.26 = 43,210.69/x
  3. Step 3: Cross multiply
    90,650.47x = 135,937.26 × 43,210.69
  4. Step 4: Simplify right side
    90,650.47x = 5,873,942,801.31
  5. Step 5: Solve for x
    x = 5,873,942,801.31/90,650.47
  6. Step 6: Final answer
    x = 64,797.71

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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.