Home / 90,726.09-136,087.22-48,620.49

Finding the Fourth Proportional to 90,726.09, 136,087.22 and 48,620.49

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Solution

The fourth proportional to 90,726.09, 136,087.22 and 48,620.49 is: 72,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.09 : 136,087.22 = 48,620.49 : x
  2. Step 2: Convert to fraction form
    90,726.09/136,087.22 = 48,620.49/x
  3. Step 3: Cross multiply
    90,726.09x = 136,087.22 × 48,620.49
  4. Step 4: Simplify right side
    90,726.09x = 6,616,627,076.04
  5. Step 5: Solve for x
    x = 6,616,627,076.04/90,726.09
  6. Step 6: Final answer
    x = 72,929.71

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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.