Home / 90,443.88-135,613.98-34,975.08

Finding the Fourth Proportional to 90,443.88, 135,613.98 and 34,975.08

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Solution

The fourth proportional to 90,443.88, 135,613.98 and 34,975.08 is: 52,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,443.88 : 135,613.98 = 34,975.08 : x
  2. Step 2: Convert to fraction form
    90,443.88/135,613.98 = 34,975.08/x
  3. Step 3: Cross multiply
    90,443.88x = 135,613.98 × 34,975.08
  4. Step 4: Simplify right side
    90,443.88x = 4,743,109,799.62
  5. Step 5: Solve for x
    x = 4,743,109,799.62/90,443.88
  6. Step 6: Final answer
    x = 52,442.57

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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.