Home / 90,133.56-124,381.18-51,891.84

Finding the Fourth Proportional to 90,133.56, 124,381.18 and 51,891.84

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Solution

The fourth proportional to 90,133.56, 124,381.18 and 51,891.84 is: 71,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,133.56 : 124,381.18 = 51,891.84 : x
  2. Step 2: Convert to fraction form
    90,133.56/124,381.18 = 51,891.84/x
  3. Step 3: Cross multiply
    90,133.56x = 124,381.18 × 51,891.84
  4. Step 4: Simplify right side
    90,133.56x = 6,454,368,291.57
  5. Step 5: Solve for x
    x = 6,454,368,291.57/90,133.56
  6. Step 6: Final answer
    x = 71,608.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.