Home / 90,585.54-135,758.03-40,656.33

Finding the Fourth Proportional to 90,585.54, 135,758.03 and 40,656.33

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Solution

The fourth proportional to 90,585.54, 135,758.03 and 40,656.33 is: 60,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,585.54 : 135,758.03 = 40,656.33 : x
  2. Step 2: Convert to fraction form
    90,585.54/135,758.03 = 40,656.33/x
  3. Step 3: Cross multiply
    90,585.54x = 135,758.03 × 40,656.33
  4. Step 4: Simplify right side
    90,585.54x = 5,519,423,064.55
  5. Step 5: Solve for x
    x = 5,519,423,064.55/90,585.54
  6. Step 6: Final answer
    x = 60,930.51

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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.