Home / 90,738.68-135,989.58-46,327.88

Finding the Fourth Proportional to 90,738.68, 135,989.58 and 46,327.88

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Solution

The fourth proportional to 90,738.68, 135,989.58 and 46,327.88 is: 69,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,738.68 : 135,989.58 = 46,327.88 : x
  2. Step 2: Convert to fraction form
    90,738.68/135,989.58 = 46,327.88/x
  3. Step 3: Cross multiply
    90,738.68x = 135,989.58 × 46,327.88
  4. Step 4: Simplify right side
    90,738.68x = 6,300,108,943.49
  5. Step 5: Solve for x
    x = 6,300,108,943.49/90,738.68
  6. Step 6: Final answer
    x = 69,431.35

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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.