Home / 90,806.49-136,122.26-28,462.41

Finding the Fourth Proportional to 90,806.49, 136,122.26 and 28,462.41

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Solution

The fourth proportional to 90,806.49, 136,122.26 and 28,462.41 is: 42,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,806.49 : 136,122.26 = 28,462.41 : x
  2. Step 2: Convert to fraction form
    90,806.49/136,122.26 = 28,462.41/x
  3. Step 3: Cross multiply
    90,806.49x = 136,122.26 × 28,462.41
  4. Step 4: Simplify right side
    90,806.49x = 3,874,367,431.93
  5. Step 5: Solve for x
    x = 3,874,367,431.93/90,806.49
  6. Step 6: Final answer
    x = 42,666.20

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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.