Home / 90,824.25-136,258.25-28,494.75

Finding the Fourth Proportional to 90,824.25, 136,258.25 and 28,494.75

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Solution

The fourth proportional to 90,824.25, 136,258.25 and 28,494.75 is: 42,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,824.25 : 136,258.25 = 28,494.75 : x
  2. Step 2: Convert to fraction form
    90,824.25/136,258.25 = 28,494.75/x
  3. Step 3: Cross multiply
    90,824.25x = 136,258.25 × 28,494.75
  4. Step 4: Simplify right side
    90,824.25x = 3,882,644,769.19
  5. Step 5: Solve for x
    x = 3,882,644,769.19/90,824.25
  6. Step 6: Final answer
    x = 42,748.99

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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.