Home / 89,945.06-134,917.38-36,659.21

Finding the Fourth Proportional to 89,945.06, 134,917.38 and 36,659.21

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Solution

The fourth proportional to 89,945.06, 134,917.38 and 36,659.21 is: 54,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,945.06 : 134,917.38 = 36,659.21 : x
  2. Step 2: Convert to fraction form
    89,945.06/134,917.38 = 36,659.21/x
  3. Step 3: Cross multiply
    89,945.06x = 134,917.38 × 36,659.21
  4. Step 4: Simplify right side
    89,945.06x = 4,945,963,891.48
  5. Step 5: Solve for x
    x = 4,945,963,891.48/89,945.06
  6. Step 6: Final answer
    x = 54,988.72

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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.