Home / 90,529.35-124,931.33-54,743.28

Finding the Fourth Proportional to 90,529.35, 124,931.33 and 54,743.28

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Solution

The fourth proportional to 90,529.35, 124,931.33 and 54,743.28 is: 75,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,529.35 : 124,931.33 = 54,743.28 : x
  2. Step 2: Convert to fraction form
    90,529.35/124,931.33 = 54,743.28/x
  3. Step 3: Cross multiply
    90,529.35x = 124,931.33 × 54,743.28
  4. Step 4: Simplify right side
    90,529.35x = 6,839,150,778.96
  5. Step 5: Solve for x
    x = 6,839,150,778.96/90,529.35
  6. Step 6: Final answer
    x = 75,546.23

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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.