Home / 81,123.26-121,652.01-33,706.13

Finding the Fourth Proportional to 81,123.26, 121,652.01 and 33,706.13

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Solution

The fourth proportional to 81,123.26, 121,652.01 and 33,706.13 is: 50,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,123.26 : 121,652.01 = 33,706.13 : x
  2. Step 2: Convert to fraction form
    81,123.26/121,652.01 = 33,706.13/x
  3. Step 3: Cross multiply
    81,123.26x = 121,652.01 × 33,706.13
  4. Step 4: Simplify right side
    81,123.26x = 4,100,417,855.56
  5. Step 5: Solve for x
    x = 4,100,417,855.56/81,123.26
  6. Step 6: Final answer
    x = 50,545.53

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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.