Home / 90,203.06-135,336.18-27,873.56

Finding the Fourth Proportional to 90,203.06, 135,336.18 and 27,873.56

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Solution

The fourth proportional to 90,203.06, 135,336.18 and 27,873.56 is: 41,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.06 : 135,336.18 = 27,873.56 : x
  2. Step 2: Convert to fraction form
    90,203.06/135,336.18 = 27,873.56/x
  3. Step 3: Cross multiply
    90,203.06x = 135,336.18 × 27,873.56
  4. Step 4: Simplify right side
    90,203.06x = 3,772,301,133.40
  5. Step 5: Solve for x
    x = 3,772,301,133.40/90,203.06
  6. Step 6: Final answer
    x = 41,820.10

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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.