Home / 89,947.06-134,920.38-36,661.21

Finding the Fourth Proportional to 89,947.06, 134,920.38 and 36,661.21

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Solution

The fourth proportional to 89,947.06, 134,920.38 and 36,661.21 is: 54,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,947.06 : 134,920.38 = 36,661.21 : x
  2. Step 2: Convert to fraction form
    89,947.06/134,920.38 = 36,661.21/x
  3. Step 3: Cross multiply
    89,947.06x = 134,920.38 × 36,661.21
  4. Step 4: Simplify right side
    89,947.06x = 4,946,344,384.46
  5. Step 5: Solve for x
    x = 4,946,344,384.46/89,947.06
  6. Step 6: Final answer
    x = 54,991.73

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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.